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Finding the Fourth Proportional to 287,291.96, 396,459.17 and 158,227.97

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Solution

The fourth proportional to 287,291.96, 396,459.17 and 158,227.97 is: 218,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,291.96 : 396,459.17 = 158,227.97 : x
  2. Step 2: Convert to fraction form
    287,291.96/396,459.17 = 158,227.97/x
  3. Step 3: Cross multiply
    287,291.96x = 396,459.17 × 158,227.97
  4. Step 4: Simplify right side
    287,291.96x = 62,730,926,883.55
  5. Step 5: Solve for x
    x = 62,730,926,883.55/287,291.96
  6. Step 6: Final answer
    x = 218,352.54

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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.