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Finding the Fourth Proportional to 305,967.90, 458,793.45 and 137,343.02

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Solution

The fourth proportional to 305,967.90, 458,793.45 and 137,343.02 is: 205,943.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,967.90 : 458,793.45 = 137,343.02 : x
  2. Step 2: Convert to fraction form
    305,967.90/458,793.45 = 137,343.02/x
  3. Step 3: Cross multiply
    305,967.90x = 458,793.45 × 137,343.02
  4. Step 4: Simplify right side
    305,967.90x = 63,012,079,006.67
  5. Step 5: Solve for x
    x = 63,012,079,006.67/305,967.90
  6. Step 6: Final answer
    x = 205,943.43

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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.