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Finding the Fourth Proportional to 147,261.40, 220,892.10 and 127,216.60

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Solution

The fourth proportional to 147,261.40, 220,892.10 and 127,216.60 is: 190,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,261.40 : 220,892.10 = 127,216.60 : x
  2. Step 2: Convert to fraction form
    147,261.40/220,892.10 = 127,216.60/x
  3. Step 3: Cross multiply
    147,261.40x = 220,892.10 × 127,216.60
  4. Step 4: Simplify right side
    147,261.40x = 28,101,141,928.86
  5. Step 5: Solve for x
    x = 28,101,141,928.86/147,261.40
  6. Step 6: Final answer
    x = 190,824.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.