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Finding the Fourth Proportional to 331,385.52, 457,295.76 and 188,126.76

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Solution

The fourth proportional to 331,385.52, 457,295.76 and 188,126.76 is: 259,605.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,385.52 : 457,295.76 = 188,126.76 : x
  2. Step 2: Convert to fraction form
    331,385.52/457,295.76 = 188,126.76/x
  3. Step 3: Cross multiply
    331,385.52x = 457,295.76 × 188,126.76
  4. Step 4: Simplify right side
    331,385.52x = 86,029,569,690.54
  5. Step 5: Solve for x
    x = 86,029,569,690.54/331,385.52
  6. Step 6: Final answer
    x = 259,605.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.