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Finding the Fourth Proportional to 665,374.40, 998,061.60 and 222,142.40

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Solution

The fourth proportional to 665,374.40, 998,061.60 and 222,142.40 is: 333,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,374.40 : 998,061.60 = 222,142.40 : x
  2. Step 2: Convert to fraction form
    665,374.40/998,061.60 = 222,142.40/x
  3. Step 3: Cross multiply
    665,374.40x = 998,061.60 × 222,142.40
  4. Step 4: Simplify right side
    665,374.40x = 221,711,799,171.84
  5. Step 5: Solve for x
    x = 221,711,799,171.84/665,374.40
  6. Step 6: Final answer
    x = 333,213.60

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Similar ratio
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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.