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Finding the Fourth Proportional to 318,350.25, 439,098.57 and 270,272.70

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Solution

The fourth proportional to 318,350.25, 439,098.57 and 270,272.70 is: 372,785.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,350.25 : 439,098.57 = 270,272.70 : x
  2. Step 2: Convert to fraction form
    318,350.25/439,098.57 = 270,272.70/x
  3. Step 3: Cross multiply
    318,350.25x = 439,098.57 × 270,272.70
  4. Step 4: Simplify right side
    318,350.25x = 118,676,356,080.04
  5. Step 5: Solve for x
    x = 118,676,356,080.04/318,350.25
  6. Step 6: Final answer
    x = 372,785.50

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