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Finding the Fourth Proportional to 290,468.66, 400,799.61 and 181,560.11

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Solution

The fourth proportional to 290,468.66, 400,799.61 and 181,560.11 is: 250,523.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,468.66 : 400,799.61 = 181,560.11 : x
  2. Step 2: Convert to fraction form
    290,468.66/400,799.61 = 181,560.11/x
  3. Step 3: Cross multiply
    290,468.66x = 400,799.61 × 181,560.11
  4. Step 4: Simplify right side
    290,468.66x = 72,769,219,275.56
  5. Step 5: Solve for x
    x = 72,769,219,275.56/290,468.66
  6. Step 6: Final answer
    x = 250,523.48

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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.