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Finding the Fourth Proportional to 287,077.59, 396,160.34 and 159,750.45

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Solution

The fourth proportional to 287,077.59, 396,160.34 and 159,750.45 is: 220,451.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,077.59 : 396,160.34 = 159,750.45 : x
  2. Step 2: Convert to fraction form
    287,077.59/396,160.34 = 159,750.45/x
  3. Step 3: Cross multiply
    287,077.59x = 396,160.34 × 159,750.45
  4. Step 4: Simplify right side
    287,077.59x = 63,286,791,788.40
  5. Step 5: Solve for x
    x = 63,286,791,788.40/287,077.59
  6. Step 6: Final answer
    x = 220,451.87

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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.