Home / 331,714.41-457,302.11-280,521.30

Finding the Fourth Proportional to 331,714.41, 457,302.11 and 280,521.30

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Solution

The fourth proportional to 331,714.41, 457,302.11 and 280,521.30 is: 386,727.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,714.41 : 457,302.11 = 280,521.30 : x
  2. Step 2: Convert to fraction form
    331,714.41/457,302.11 = 280,521.30/x
  3. Step 3: Cross multiply
    331,714.41x = 457,302.11 × 280,521.30
  4. Step 4: Simplify right side
    331,714.41x = 128,282,982,389.94
  5. Step 5: Solve for x
    x = 128,282,982,389.94/331,714.41
  6. Step 6: Final answer
    x = 386,727.19

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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.