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Finding the Fourth Proportional to 222,395.92, 306,901.98 and 126,887.20

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Solution

The fourth proportional to 222,395.92, 306,901.98 and 126,887.20 is: 175,101.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,395.92 : 306,901.98 = 126,887.20 : x
  2. Step 2: Convert to fraction form
    222,395.92/306,901.98 = 126,887.20/x
  3. Step 3: Cross multiply
    222,395.92x = 306,901.98 × 126,887.20
  4. Step 4: Simplify right side
    222,395.92x = 38,941,932,916.66
  5. Step 5: Solve for x
    x = 38,941,932,916.66/222,395.92
  6. Step 6: Final answer
    x = 175,101.83

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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.