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Finding the Fourth Proportional to 256,927.86, 385,295.94 and 88,400.52

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Solution

The fourth proportional to 256,927.86, 385,295.94 and 88,400.52 is: 132,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,927.86 : 385,295.94 = 88,400.52 : x
  2. Step 2: Convert to fraction form
    256,927.86/385,295.94 = 88,400.52/x
  3. Step 3: Cross multiply
    256,927.86x = 385,295.94 × 88,400.52
  4. Step 4: Simplify right side
    256,927.86x = 34,060,361,449.89
  5. Step 5: Solve for x
    x = 34,060,361,449.89/256,927.86
  6. Step 6: Final answer
    x = 132,567.80

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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.