Home / 437,923.72-656,829.08-138,434.56

Finding the Fourth Proportional to 437,923.72, 656,829.08 and 138,434.56

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Solution

The fourth proportional to 437,923.72, 656,829.08 and 138,434.56 is: 207,633.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,923.72 : 656,829.08 = 138,434.56 : x
  2. Step 2: Convert to fraction form
    437,923.72/656,829.08 = 138,434.56/x
  3. Step 3: Cross multiply
    437,923.72x = 656,829.08 × 138,434.56
  4. Step 4: Simplify right side
    437,923.72x = 90,927,844,685.00
  5. Step 5: Solve for x
    x = 90,927,844,685.00/437,923.72
  6. Step 6: Final answer
    x = 207,633.98

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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.