Home / 437,515.32-656,310.03-121,972.53

Finding the Fourth Proportional to 437,515.32, 656,310.03 and 121,972.53

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Solution

The fourth proportional to 437,515.32, 656,310.03 and 121,972.53 is: 182,969.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,515.32 : 656,310.03 = 121,972.53 : x
  2. Step 2: Convert to fraction form
    437,515.32/656,310.03 = 121,972.53/x
  3. Step 3: Cross multiply
    437,515.32x = 656,310.03 × 121,972.53
  4. Step 4: Simplify right side
    437,515.32x = 80,051,794,823.48
  5. Step 5: Solve for x
    x = 80,051,794,823.48/437,515.32
  6. Step 6: Final answer
    x = 182,969.12

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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.