Home / 422,947.08-634,562.80-156,729.04

Finding the Fourth Proportional to 422,947.08, 634,562.80 and 156,729.04

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Solution

The fourth proportional to 422,947.08, 634,562.80 and 156,729.04 is: 235,146.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,947.08 : 634,562.80 = 156,729.04 : x
  2. Step 2: Convert to fraction form
    422,947.08/634,562.80 = 156,729.04/x
  3. Step 3: Cross multiply
    422,947.08x = 634,562.80 × 156,729.04
  4. Step 4: Simplify right side
    422,947.08x = 99,454,418,463.71
  5. Step 5: Solve for x
    x = 99,454,418,463.71/422,947.08
  6. Step 6: Final answer
    x = 235,146.25

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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.