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Finding the Fourth Proportional to 255,559.68, 383,362.56 and 68,569.92

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Solution

The fourth proportional to 255,559.68, 383,362.56 and 68,569.92 is: 102,861.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,559.68 : 383,362.56 = 68,569.92 : x
  2. Step 2: Convert to fraction form
    255,559.68/383,362.56 = 68,569.92/x
  3. Step 3: Cross multiply
    255,559.68x = 383,362.56 × 68,569.92
  4. Step 4: Simplify right side
    255,559.68x = 26,287,140,070.20
  5. Step 5: Solve for x
    x = 26,287,140,070.20/255,559.68
  6. Step 6: Final answer
    x = 102,861.06

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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.