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Finding the Fourth Proportional to 215,508.66, 297,400.32 and 124,862.70

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Solution

The fourth proportional to 215,508.66, 297,400.32 and 124,862.70 is: 172,309.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,508.66 : 297,400.32 = 124,862.70 : x
  2. Step 2: Convert to fraction form
    215,508.66/297,400.32 = 124,862.70/x
  3. Step 3: Cross multiply
    215,508.66x = 297,400.32 × 124,862.70
  4. Step 4: Simplify right side
    215,508.66x = 37,134,206,936.06
  5. Step 5: Solve for x
    x = 37,134,206,936.06/215,508.66
  6. Step 6: Final answer
    x = 172,309.58

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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.