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Finding the Fourth Proportional to 218,757.90, 328,266.45 and 159,444.30

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Solution

The fourth proportional to 218,757.90, 328,266.45 and 159,444.30 is: 239,260.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,757.90 : 328,266.45 = 159,444.30 : x
  2. Step 2: Convert to fraction form
    218,757.90/328,266.45 = 159,444.30/x
  3. Step 3: Cross multiply
    218,757.90x = 328,266.45 × 159,444.30
  4. Step 4: Simplify right side
    218,757.90x = 52,340,214,333.74
  5. Step 5: Solve for x
    x = 52,340,214,333.74/218,757.90
  6. Step 6: Final answer
    x = 239,260.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.