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Finding the Fourth Proportional to 223,920.68, 308,996.46 and 123,318.68

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Solution

The fourth proportional to 223,920.68, 308,996.46 and 123,318.68 is: 170,172.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,920.68 : 308,996.46 = 123,318.68 : x
  2. Step 2: Convert to fraction form
    223,920.68/308,996.46 = 123,318.68/x
  3. Step 3: Cross multiply
    223,920.68x = 308,996.46 × 123,318.68
  4. Step 4: Simplify right side
    223,920.68x = 38,105,034,026.89
  5. Step 5: Solve for x
    x = 38,105,034,026.89/223,920.68
  6. Step 6: Final answer
    x = 170,172.02

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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.