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Finding the Fourth Proportional to 542,465.55, 813,587.15 and 205,389.92

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Solution

The fourth proportional to 542,465.55, 813,587.15 and 205,389.92 is: 308,042.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,465.55 : 813,587.15 = 205,389.92 : x
  2. Step 2: Convert to fraction form
    542,465.55/813,587.15 = 205,389.92/x
  3. Step 3: Cross multiply
    542,465.55x = 813,587.15 × 205,389.92
  4. Step 4: Simplify right side
    542,465.55x = 167,102,600,658.55
  5. Step 5: Solve for x
    x = 167,102,600,658.55/542,465.55
  6. Step 6: Final answer
    x = 308,042.79

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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.