Home / 220,720.24-304,572.84-123,901.92

Finding the Fourth Proportional to 220,720.24, 304,572.84 and 123,901.92

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Solution

The fourth proportional to 220,720.24, 304,572.84 and 123,901.92 is: 170,972.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,720.24 : 304,572.84 = 123,901.92 : x
  2. Step 2: Convert to fraction form
    220,720.24/304,572.84 = 123,901.92/x
  3. Step 3: Cross multiply
    220,720.24x = 304,572.84 × 123,901.92
  4. Step 4: Simplify right side
    220,720.24x = 37,737,159,655.85
  5. Step 5: Solve for x
    x = 37,737,159,655.85/220,720.24
  6. Step 6: Final answer
    x = 170,972.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.