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Finding the Fourth Proportional to 354,872.10, 532,308.15 and 255,728.10

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Solution

The fourth proportional to 354,872.10, 532,308.15 and 255,728.10 is: 383,592.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,872.10 : 532,308.15 = 255,728.10 : x
  2. Step 2: Convert to fraction form
    354,872.10/532,308.15 = 255,728.10/x
  3. Step 3: Cross multiply
    354,872.10x = 532,308.15 × 255,728.10
  4. Step 4: Simplify right side
    354,872.10x = 136,126,151,814.02
  5. Step 5: Solve for x
    x = 136,126,151,814.02/354,872.10
  6. Step 6: Final answer
    x = 383,592.15

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