Home / 399,218.64-551,032.92-229,507.44

Finding the Fourth Proportional to 399,218.64, 551,032.92 and 229,507.44

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Solution

The fourth proportional to 399,218.64, 551,032.92 and 229,507.44 is: 316,784.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,218.64 : 551,032.92 = 229,507.44 : x
  2. Step 2: Convert to fraction form
    399,218.64/551,032.92 = 229,507.44/x
  3. Step 3: Cross multiply
    399,218.64x = 551,032.92 × 229,507.44
  4. Step 4: Simplify right side
    399,218.64x = 126,466,154,824.93
  5. Step 5: Solve for x
    x = 126,466,154,824.93/399,218.64
  6. Step 6: Final answer
    x = 316,784.19

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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.