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Finding the Fourth Proportional to 361,819.95, 542,346.88 and 121,705.27

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Solution

The fourth proportional to 361,819.95, 542,346.88 and 121,705.27 is: 182,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,819.95 : 542,346.88 = 121,705.27 : x
  2. Step 2: Convert to fraction form
    361,819.95/542,346.88 = 121,705.27/x
  3. Step 3: Cross multiply
    361,819.95x = 542,346.88 × 121,705.27
  4. Step 4: Simplify right side
    361,819.95x = 66,006,473,464.06
  5. Step 5: Solve for x
    x = 66,006,473,464.06/361,819.95
  6. Step 6: Final answer
    x = 182,429.06

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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.