Home / 272,279.10-408,418.65-260,031.90

Finding the Fourth Proportional to 272,279.10, 408,418.65 and 260,031.90

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Solution

The fourth proportional to 272,279.10, 408,418.65 and 260,031.90 is: 390,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,279.10 : 408,418.65 = 260,031.90 : x
  2. Step 2: Convert to fraction form
    272,279.10/408,418.65 = 260,031.90/x
  3. Step 3: Cross multiply
    272,279.10x = 408,418.65 × 260,031.90
  4. Step 4: Simplify right side
    272,279.10x = 106,201,877,554.94
  5. Step 5: Solve for x
    x = 106,201,877,554.94/272,279.10
  6. Step 6: Final answer
    x = 390,047.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.