Home / 453,538.80-680,406.60-137,987.50

Finding the Fourth Proportional to 453,538.80, 680,406.60 and 137,987.50

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Solution

The fourth proportional to 453,538.80, 680,406.60 and 137,987.50 is: 207,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,538.80 : 680,406.60 = 137,987.50 : x
  2. Step 2: Convert to fraction form
    453,538.80/680,406.60 = 137,987.50/x
  3. Step 3: Cross multiply
    453,538.80x = 680,406.60 × 137,987.50
  4. Step 4: Simplify right side
    453,538.80x = 93,887,605,717.50
  5. Step 5: Solve for x
    x = 93,887,605,717.50/453,538.80
  6. Step 6: Final answer
    x = 207,011.19

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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.