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Finding the Fourth Proportional to 222,459.20, 306,747.70 and 141,758.90

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Solution

The fourth proportional to 222,459.20, 306,747.70 and 141,758.90 is: 195,470.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,459.20 : 306,747.70 = 141,758.90 : x
  2. Step 2: Convert to fraction form
    222,459.20/306,747.70 = 141,758.90/x
  3. Step 3: Cross multiply
    222,459.20x = 306,747.70 × 141,758.90
  4. Step 4: Simplify right side
    222,459.20x = 43,484,214,641.39
  5. Step 5: Solve for x
    x = 43,484,214,641.39/222,459.20
  6. Step 6: Final answer
    x = 195,470.52

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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.