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Finding the Fourth Proportional to 399,695.06, 551,575.01 and 225,249

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Solution

The fourth proportional to 399,695.06, 551,575.01 and 225,249 is: 310,841.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,695.06 : 551,575.01 = 225,249 : x
  2. Step 2: Convert to fraction form
    399,695.06/551,575.01 = 225,249/x
  3. Step 3: Cross multiply
    399,695.06x = 551,575.01 × 225,249
  4. Step 4: Simplify right side
    399,695.06x = 124,241,718,301.25
  5. Step 5: Solve for x
    x = 124,241,718,301.25/399,695.06
  6. Step 6: Final answer
    x = 310,841.27

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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.