Home / 312,514.20-431,267.49-176,592.15

Finding the Fourth Proportional to 312,514.20, 431,267.49 and 176,592.15

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Solution

The fourth proportional to 312,514.20, 431,267.49 and 176,592.15 is: 243,695.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,514.20 : 431,267.49 = 176,592.15 : x
  2. Step 2: Convert to fraction form
    312,514.20/431,267.49 = 176,592.15/x
  3. Step 3: Cross multiply
    312,514.20x = 431,267.49 × 176,592.15
  4. Step 4: Simplify right side
    312,514.20x = 76,158,453,284.20
  5. Step 5: Solve for x
    x = 76,158,453,284.20/312,514.20
  6. Step 6: Final answer
    x = 243,695.98

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1.5x scale

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.