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Finding the Fourth Proportional to 288,328.82, 397,892.17 and 159,276.15

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Solution

The fourth proportional to 288,328.82, 397,892.17 and 159,276.15 is: 219,800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,328.82 : 397,892.17 = 159,276.15 : x
  2. Step 2: Convert to fraction form
    288,328.82/397,892.17 = 159,276.15/x
  3. Step 3: Cross multiply
    288,328.82x = 397,892.17 × 159,276.15
  4. Step 4: Simplify right side
    288,328.82x = 63,374,732,480.73
  5. Step 5: Solve for x
    x = 63,374,732,480.73/288,328.82
  6. Step 6: Final answer
    x = 219,800.20

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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.