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Finding the Fourth Proportional to 417,245.86, 625,985.43 and 136,959.94

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Solution

The fourth proportional to 417,245.86, 625,985.43 and 136,959.94 is: 205,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,245.86 : 625,985.43 = 136,959.94 : x
  2. Step 2: Convert to fraction form
    417,245.86/625,985.43 = 136,959.94/x
  3. Step 3: Cross multiply
    417,245.86x = 625,985.43 × 136,959.94
  4. Step 4: Simplify right side
    417,245.86x = 85,734,926,933.67
  5. Step 5: Solve for x
    x = 85,734,926,933.67/417,245.86
  6. Step 6: Final answer
    x = 205,478.20

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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.