Home / 276,839.10-382,031.64-169,408.80

Finding the Fourth Proportional to 276,839.10, 382,031.64 and 169,408.80

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Solution

The fourth proportional to 276,839.10, 382,031.64 and 169,408.80 is: 233,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,839.10 : 382,031.64 = 169,408.80 : x
  2. Step 2: Convert to fraction form
    276,839.10/382,031.64 = 169,408.80/x
  3. Step 3: Cross multiply
    276,839.10x = 382,031.64 × 169,408.80
  4. Step 4: Simplify right side
    276,839.10x = 64,719,521,694.43
  5. Step 5: Solve for x
    x = 64,719,521,694.43/276,839.10
  6. Step 6: Final answer
    x = 233,780.28

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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.