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Finding the Fourth Proportional to 288,553.79, 398,202.06 and 159,500.74

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Solution

The fourth proportional to 288,553.79, 398,202.06 and 159,500.74 is: 220,109.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,553.79 : 398,202.06 = 159,500.74 : x
  2. Step 2: Convert to fraction form
    288,553.79/398,202.06 = 159,500.74/x
  3. Step 3: Cross multiply
    288,553.79x = 398,202.06 × 159,500.74
  4. Step 4: Simplify right side
    288,553.79x = 63,513,522,442.02
  5. Step 5: Solve for x
    x = 63,513,522,442.02/288,553.79
  6. Step 6: Final answer
    x = 220,109.82

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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.