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Finding the Fourth Proportional to 223,900.48, 308,969.76 and 134,459.20

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Solution

The fourth proportional to 223,900.48, 308,969.76 and 134,459.20 is: 185,545.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,900.48 : 308,969.76 = 134,459.20 : x
  2. Step 2: Convert to fraction form
    223,900.48/308,969.76 = 134,459.20/x
  3. Step 3: Cross multiply
    223,900.48x = 308,969.76 × 134,459.20
  4. Step 4: Simplify right side
    223,900.48x = 41,543,826,753.79
  5. Step 5: Solve for x
    x = 41,543,826,753.79/223,900.48
  6. Step 6: Final answer
    x = 185,545.95

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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.