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Finding the Fourth Proportional to 220,224.32, 330,385.68 and 70,473.60

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Solution

The fourth proportional to 220,224.32, 330,385.68 and 70,473.60 is: 105,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,224.32 : 330,385.68 = 70,473.60 : x
  2. Step 2: Convert to fraction form
    220,224.32/330,385.68 = 70,473.60/x
  3. Step 3: Cross multiply
    220,224.32x = 330,385.68 × 70,473.60
  4. Step 4: Simplify right side
    220,224.32x = 23,283,468,258.05
  5. Step 5: Solve for x
    x = 23,283,468,258.05/220,224.32
  6. Step 6: Final answer
    x = 105,726.14

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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.