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Finding the Fourth Proportional to 309,248.80, 426,756.12 and 181,932.59

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Solution

The fourth proportional to 309,248.80, 426,756.12 and 181,932.59 is: 251,062.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,248.80 : 426,756.12 = 181,932.59 : x
  2. Step 2: Convert to fraction form
    309,248.80/426,756.12 = 181,932.59/x
  3. Step 3: Cross multiply
    309,248.80x = 426,756.12 × 181,932.59
  4. Step 4: Simplify right side
    309,248.80x = 77,640,846,209.95
  5. Step 5: Solve for x
    x = 77,640,846,209.95/309,248.80
  6. Step 6: Final answer
    x = 251,062.72

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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.