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Finding the Fourth Proportional to 302,540.40, 453,810.60 and 196,252.20

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Solution

The fourth proportional to 302,540.40, 453,810.60 and 196,252.20 is: 294,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,540.40 : 453,810.60 = 196,252.20 : x
  2. Step 2: Convert to fraction form
    302,540.40/453,810.60 = 196,252.20/x
  3. Step 3: Cross multiply
    302,540.40x = 453,810.60 × 196,252.20
  4. Step 4: Simplify right side
    302,540.40x = 89,061,328,633.32
  5. Step 5: Solve for x
    x = 89,061,328,633.32/302,540.40
  6. Step 6: Final answer
    x = 294,378.30

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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.