Home / 399,558.18-551,407.07-229,792.46

Finding the Fourth Proportional to 399,558.18, 551,407.07 and 229,792.46

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Solution

The fourth proportional to 399,558.18, 551,407.07 and 229,792.46 is: 317,123.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,558.18 : 551,407.07 = 229,792.46 : x
  2. Step 2: Convert to fraction form
    399,558.18/551,407.07 = 229,792.46/x
  3. Step 3: Cross multiply
    399,558.18x = 551,407.07 × 229,792.46
  4. Step 4: Simplify right side
    399,558.18x = 126,709,187,076.69
  5. Step 5: Solve for x
    x = 126,709,187,076.69/399,558.18
  6. Step 6: Final answer
    x = 317,123.25

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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.