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Finding the Fourth Proportional to 479,101.34, 718,723.78 and 154,781.07

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Solution

The fourth proportional to 479,101.34, 718,723.78 and 154,781.07 is: 232,194.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,101.34 : 718,723.78 = 154,781.07 : x
  2. Step 2: Convert to fraction form
    479,101.34/718,723.78 = 154,781.07/x
  3. Step 3: Cross multiply
    479,101.34x = 718,723.78 × 154,781.07
  4. Step 4: Simplify right side
    479,101.34x = 111,244,832,496.18
  5. Step 5: Solve for x
    x = 111,244,832,496.18/479,101.34
  6. Step 6: Final answer
    x = 232,194.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.