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Finding the Fourth Proportional to 220,207.68, 303,890.60 and 124,734.20

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Solution

The fourth proportional to 220,207.68, 303,890.60 and 124,734.20 is: 172,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,207.68 : 303,890.60 = 124,734.20 : x
  2. Step 2: Convert to fraction form
    220,207.68/303,890.60 = 124,734.20/x
  3. Step 3: Cross multiply
    220,207.68x = 303,890.60 × 124,734.20
  4. Step 4: Simplify right side
    220,207.68x = 37,905,549,670.90
  5. Step 5: Solve for x
    x = 37,905,549,670.90/220,207.68
  6. Step 6: Final answer
    x = 172,135.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.