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Finding the Fourth Proportional to 363,428.60, 545,726.10 and 245,622.20

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Solution

The fourth proportional to 363,428.60, 545,726.10 and 245,622.20 is: 368,827.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,428.60 : 545,726.10 = 245,622.20 : x
  2. Step 2: Convert to fraction form
    363,428.60/545,726.10 = 245,622.20/x
  3. Step 3: Cross multiply
    363,428.60x = 545,726.10 × 245,622.20
  4. Step 4: Simplify right side
    363,428.60x = 134,042,445,279.42
  5. Step 5: Solve for x
    x = 134,042,445,279.42/363,428.60
  6. Step 6: Final answer
    x = 368,827.45

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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.