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Finding the Fourth Proportional to 208,474.59, 287,725.80 and 132,000.77

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Solution

The fourth proportional to 208,474.59, 287,725.80 and 132,000.77 is: 182,180.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,474.59 : 287,725.80 = 132,000.77 : x
  2. Step 2: Convert to fraction form
    208,474.59/287,725.80 = 132,000.77/x
  3. Step 3: Cross multiply
    208,474.59x = 287,725.80 × 132,000.77
  4. Step 4: Simplify right side
    208,474.59x = 37,980,028,363.18
  5. Step 5: Solve for x
    x = 37,980,028,363.18/208,474.59
  6. Step 6: Final answer
    x = 182,180.61

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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.