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Finding the Fourth Proportional to 309,248.30, 426,755.43 and 181,932.09

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Solution

The fourth proportional to 309,248.30, 426,755.43 and 181,932.09 is: 251,062.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,248.30 : 426,755.43 = 181,932.09 : x
  2. Step 2: Convert to fraction form
    309,248.30/426,755.43 = 181,932.09/x
  3. Step 3: Cross multiply
    309,248.30x = 426,755.43 × 181,932.09
  4. Step 4: Simplify right side
    309,248.30x = 77,640,507,298.75
  5. Step 5: Solve for x
    x = 77,640,507,298.75/309,248.30
  6. Step 6: Final answer
    x = 251,062.04

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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.