Home / 437,512.07-656,305.16-121,969.28

Finding the Fourth Proportional to 437,512.07, 656,305.16 and 121,969.28

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Solution

The fourth proportional to 437,512.07, 656,305.16 and 121,969.28 is: 182,964.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,512.07 : 656,305.16 = 121,969.28 : x
  2. Step 2: Convert to fraction form
    437,512.07/656,305.16 = 121,969.28/x
  3. Step 3: Cross multiply
    437,512.07x = 656,305.16 × 121,969.28
  4. Step 4: Simplify right side
    437,512.07x = 80,049,063,934.11
  5. Step 5: Solve for x
    x = 80,049,063,934.11/437,512.07
  6. Step 6: Final answer
    x = 182,964.24

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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.