Home / 215,629.60-323,444.40-193,079.20

Finding the Fourth Proportional to 215,629.60, 323,444.40 and 193,079.20

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Solution

The fourth proportional to 215,629.60, 323,444.40 and 193,079.20 is: 289,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,629.60 : 323,444.40 = 193,079.20 : x
  2. Step 2: Convert to fraction form
    215,629.60/323,444.40 = 193,079.20/x
  3. Step 3: Cross multiply
    215,629.60x = 323,444.40 × 193,079.20
  4. Step 4: Simplify right side
    215,629.60x = 62,450,385,996.48
  5. Step 5: Solve for x
    x = 62,450,385,996.48/215,629.60
  6. Step 6: Final answer
    x = 289,618.80

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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.