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Finding the Fourth Proportional to 255,849.57, 383,275.62 and 155,761.56

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Solution

The fourth proportional to 255,849.57, 383,275.62 and 155,761.56 is: 233,338.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,849.57 : 383,275.62 = 155,761.56 : x
  2. Step 2: Convert to fraction form
    255,849.57/383,275.62 = 155,761.56/x
  3. Step 3: Cross multiply
    255,849.57x = 383,275.62 × 155,761.56
  4. Step 4: Simplify right side
    255,849.57x = 59,699,608,481.17
  5. Step 5: Solve for x
    x = 59,699,608,481.17/255,849.57
  6. Step 6: Final answer
    x = 233,338.71

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1.5x scale

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.