Home / 399,869.06-551,836.05-230,103.86

Finding the Fourth Proportional to 399,869.06, 551,836.05 and 230,103.86

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Solution

The fourth proportional to 399,869.06, 551,836.05 and 230,103.86 is: 317,552.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,869.06 : 551,836.05 = 230,103.86 : x
  2. Step 2: Convert to fraction form
    399,869.06/551,836.05 = 230,103.86/x
  3. Step 3: Cross multiply
    399,869.06x = 551,836.05 × 230,103.86
  4. Step 4: Simplify right side
    399,869.06x = 126,979,605,192.15
  5. Step 5: Solve for x
    x = 126,979,605,192.15/399,869.06
  6. Step 6: Final answer
    x = 317,552.96

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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.