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Finding the Fourth Proportional to 317,301.70, 437,906.28 and 181,309.30

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Solution

The fourth proportional to 317,301.70, 437,906.28 and 181,309.30 is: 250,223.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,301.70 : 437,906.28 = 181,309.30 : x
  2. Step 2: Convert to fraction form
    317,301.70/437,906.28 = 181,309.30/x
  3. Step 3: Cross multiply
    317,301.70x = 437,906.28 × 181,309.30
  4. Step 4: Simplify right side
    317,301.70x = 79,396,478,902.87
  5. Step 5: Solve for x
    x = 79,396,478,902.87/317,301.70
  6. Step 6: Final answer
    x = 250,223.93

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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.