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Finding the Fourth Proportional to 287,497.70, 396,747.24 and 160,177.76

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Solution

The fourth proportional to 287,497.70, 396,747.24 and 160,177.76 is: 221,045.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,497.70 : 396,747.24 = 160,177.76 : x
  2. Step 2: Convert to fraction form
    287,497.70/396,747.24 = 160,177.76/x
  3. Step 3: Cross multiply
    287,497.70x = 396,747.24 × 160,177.76
  4. Step 4: Simplify right side
    287,497.70x = 63,550,084,189.38
  5. Step 5: Solve for x
    x = 63,550,084,189.38/287,497.70
  6. Step 6: Final answer
    x = 221,045.54

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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.