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Finding the Fourth Proportional to 286,360.49, 395,154.41 and 165,509.60

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Solution

The fourth proportional to 286,360.49, 395,154.41 and 165,509.60 is: 228,389.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,360.49 : 395,154.41 = 165,509.60 : x
  2. Step 2: Convert to fraction form
    286,360.49/395,154.41 = 165,509.60/x
  3. Step 3: Cross multiply
    286,360.49x = 395,154.41 × 165,509.60
  4. Step 4: Simplify right side
    286,360.49x = 65,401,847,509.79
  5. Step 5: Solve for x
    x = 65,401,847,509.79/286,360.49
  6. Step 6: Final answer
    x = 228,389.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.