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Finding the Fourth Proportional to 219,807.18, 303,350.22 and 123,020.76

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Solution

The fourth proportional to 219,807.18, 303,350.22 and 123,020.76 is: 169,777.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,807.18 : 303,350.22 = 123,020.76 : x
  2. Step 2: Convert to fraction form
    219,807.18/303,350.22 = 123,020.76/x
  3. Step 3: Cross multiply
    219,807.18x = 303,350.22 × 123,020.76
  4. Step 4: Simplify right side
    219,807.18x = 37,318,374,610.57
  5. Step 5: Solve for x
    x = 37,318,374,610.57/219,807.18
  6. Step 6: Final answer
    x = 169,777.78

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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.