Home / 399,839.46-551,778.96-230,106.66

Finding the Fourth Proportional to 399,839.46, 551,778.96 and 230,106.66

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Solution

The fourth proportional to 399,839.46, 551,778.96 and 230,106.66 is: 317,547.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,839.46 : 551,778.96 = 230,106.66 : x
  2. Step 2: Convert to fraction form
    399,839.46/551,778.96 = 230,106.66/x
  3. Step 3: Cross multiply
    399,839.46x = 551,778.96 × 230,106.66
  4. Step 4: Simplify right side
    399,839.46x = 126,968,013,543.87
  5. Step 5: Solve for x
    x = 126,968,013,543.87/399,839.46
  6. Step 6: Final answer
    x = 317,547.48

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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.