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Finding the Fourth Proportional to 361,426.32, 542,143.80 and 171,906.84

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Solution

The fourth proportional to 361,426.32, 542,143.80 and 171,906.84 is: 257,862.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,426.32 : 542,143.80 = 171,906.84 : x
  2. Step 2: Convert to fraction form
    361,426.32/542,143.80 = 171,906.84/x
  3. Step 3: Cross multiply
    361,426.32x = 542,143.80 × 171,906.84
  4. Step 4: Simplify right side
    361,426.32x = 93,198,227,483.59
  5. Step 5: Solve for x
    x = 93,198,227,483.59/361,426.32
  6. Step 6: Final answer
    x = 257,862.31

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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.