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Finding the Fourth Proportional to 421,545.38, 581,697.30 and 237,773.79

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Solution

The fourth proportional to 421,545.38, 581,697.30 and 237,773.79 is: 328,107.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,545.38 : 581,697.30 = 237,773.79 : x
  2. Step 2: Convert to fraction form
    421,545.38/581,697.30 = 237,773.79/x
  3. Step 3: Cross multiply
    421,545.38x = 581,697.30 × 237,773.79
  4. Step 4: Simplify right side
    421,545.38x = 138,312,370,464.90
  5. Step 5: Solve for x
    x = 138,312,370,464.90/421,545.38
  6. Step 6: Final answer
    x = 328,107.91

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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.