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Finding the Fourth Proportional to 287,591.01, 396,867.65 and 160,263.33

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Solution

The fourth proportional to 287,591.01, 396,867.65 and 160,263.33 is: 221,158.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,591.01 : 396,867.65 = 160,263.33 : x
  2. Step 2: Convert to fraction form
    287,591.01/396,867.65 = 160,263.33/x
  3. Step 3: Cross multiply
    287,591.01x = 396,867.65 × 160,263.33
  4. Step 4: Simplify right side
    287,591.01x = 63,603,330,356.96
  5. Step 5: Solve for x
    x = 63,603,330,356.96/287,591.01
  6. Step 6: Final answer
    x = 221,158.97

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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.