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Finding the Fourth Proportional to 283,726.12, 425,690.80 and 121,552.12

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Solution

The fourth proportional to 283,726.12, 425,690.80 and 121,552.12 is: 182,371.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,726.12 : 425,690.80 = 121,552.12 : x
  2. Step 2: Convert to fraction form
    283,726.12/425,690.80 = 121,552.12/x
  3. Step 3: Cross multiply
    283,726.12x = 425,690.80 × 121,552.12
  4. Step 4: Simplify right side
    283,726.12x = 51,743,619,204.50
  5. Step 5: Solve for x
    x = 51,743,619,204.50/283,726.12
  6. Step 6: Final answer
    x = 182,371.72

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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.