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Finding the Fourth Proportional to 265,545.30, 399,095.55 and 231,330.90

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Solution

The fourth proportional to 265,545.30, 399,095.55 and 231,330.90 is: 347,673.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,545.30 : 399,095.55 = 231,330.90 : x
  2. Step 2: Convert to fraction form
    265,545.30/399,095.55 = 231,330.90/x
  3. Step 3: Cross multiply
    265,545.30x = 399,095.55 × 231,330.90
  4. Step 4: Simplify right side
    265,545.30x = 92,323,132,767.50
  5. Step 5: Solve for x
    x = 92,323,132,767.50/265,545.30
  6. Step 6: Final answer
    x = 347,673.76

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1.5x scale

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.