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Finding the Fourth Proportional to 220,115.60, 329,954.70 and 101,580.20

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Solution

The fourth proportional to 220,115.60, 329,954.70 and 101,580.20 is: 152,269.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,115.60 : 329,954.70 = 101,580.20 : x
  2. Step 2: Convert to fraction form
    220,115.60/329,954.70 = 101,580.20/x
  3. Step 3: Cross multiply
    220,115.60x = 329,954.70 × 101,580.20
  4. Step 4: Simplify right side
    220,115.60x = 33,516,864,416.94
  5. Step 5: Solve for x
    x = 33,516,864,416.94/220,115.60
  6. Step 6: Final answer
    x = 152,269.37

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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.