Home / 399,555.18-551,402.93-229,789.46

Finding the Fourth Proportional to 399,555.18, 551,402.93 and 229,789.46

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Solution

The fourth proportional to 399,555.18, 551,402.93 and 229,789.46 is: 317,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,555.18 : 551,402.93 = 229,789.46 : x
  2. Step 2: Convert to fraction form
    399,555.18/551,402.93 = 229,789.46/x
  3. Step 3: Cross multiply
    399,555.18x = 551,402.93 × 229,789.46
  4. Step 4: Simplify right side
    399,555.18x = 126,706,581,527.12
  5. Step 5: Solve for x
    x = 126,706,581,527.12/399,555.18
  6. Step 6: Final answer
    x = 317,119.11

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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.