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Finding the Fourth Proportional to 575,385.40, 863,078.10 and 201,446.20

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Solution

The fourth proportional to 575,385.40, 863,078.10 and 201,446.20 is: 302,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,385.40 : 863,078.10 = 201,446.20 : x
  2. Step 2: Convert to fraction form
    575,385.40/863,078.10 = 201,446.20/x
  3. Step 3: Cross multiply
    575,385.40x = 863,078.10 × 201,446.20
  4. Step 4: Simplify right side
    575,385.40x = 173,863,803,548.22
  5. Step 5: Solve for x
    x = 173,863,803,548.22/575,385.40
  6. Step 6: Final answer
    x = 302,169.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.