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Finding the Fourth Proportional to 147,237.60, 220,856.40 and 80,882.40

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Solution

The fourth proportional to 147,237.60, 220,856.40 and 80,882.40 is: 121,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,237.60 : 220,856.40 = 80,882.40 : x
  2. Step 2: Convert to fraction form
    147,237.60/220,856.40 = 80,882.40/x
  3. Step 3: Cross multiply
    147,237.60x = 220,856.40 × 80,882.40
  4. Step 4: Simplify right side
    147,237.60x = 17,863,395,687.36
  5. Step 5: Solve for x
    x = 17,863,395,687.36/147,237.60
  6. Step 6: Final answer
    x = 121,323.60

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1.5x scale

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.