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Finding the Fourth Proportional to 255,861.60, 383,293.56 and 155,773.56

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Solution

The fourth proportional to 255,861.60, 383,293.56 and 155,773.56 is: 233,356.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,861.60 : 383,293.56 = 155,773.56 : x
  2. Step 2: Convert to fraction form
    255,861.60/383,293.56 = 155,773.56/x
  3. Step 3: Cross multiply
    255,861.60x = 383,293.56 × 155,773.56
  4. Step 4: Simplify right side
    255,861.60x = 59,707,002,366.27
  5. Step 5: Solve for x
    x = 59,707,002,366.27/255,861.60
  6. Step 6: Final answer
    x = 233,356.64

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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.