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Finding the Fourth Proportional to 287,375.97, 396,591.10 and 160,051.57

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Solution

The fourth proportional to 287,375.97, 396,591.10 and 160,051.57 is: 220,878.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,375.97 : 396,591.10 = 160,051.57 : x
  2. Step 2: Convert to fraction form
    287,375.97/396,591.10 = 160,051.57/x
  3. Step 3: Cross multiply
    287,375.97x = 396,591.10 × 160,051.57
  4. Step 4: Simplify right side
    287,375.97x = 63,475,028,203.03
  5. Step 5: Solve for x
    x = 63,475,028,203.03/287,375.97
  6. Step 6: Final answer
    x = 220,878.00

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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.