Home / 215,390.07-297,266.15-123,545.18

Finding the Fourth Proportional to 215,390.07, 297,266.15 and 123,545.18

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Solution

The fourth proportional to 215,390.07, 297,266.15 and 123,545.18 is: 170,508.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,390.07 : 297,266.15 = 123,545.18 : x
  2. Step 2: Convert to fraction form
    215,390.07/297,266.15 = 123,545.18/x
  3. Step 3: Cross multiply
    215,390.07x = 297,266.15 × 123,545.18
  4. Step 4: Simplify right side
    215,390.07x = 36,725,801,061.69
  5. Step 5: Solve for x
    x = 36,725,801,061.69/215,390.07
  6. Step 6: Final answer
    x = 170,508.33

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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.