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Finding the Fourth Proportional to 542,465.60, 813,685.60 and 148,481.60

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Solution

The fourth proportional to 542,465.60, 813,685.60 and 148,481.60 is: 222,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,465.60 : 813,685.60 = 148,481.60 : x
  2. Step 2: Convert to fraction form
    542,465.60/813,685.60 = 148,481.60/x
  3. Step 3: Cross multiply
    542,465.60x = 813,685.60 × 148,481.60
  4. Step 4: Simplify right side
    542,465.60x = 120,817,339,784.96
  5. Step 5: Solve for x
    x = 120,817,339,784.96/542,465.60
  6. Step 6: Final answer
    x = 222,718.90

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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.