Home / 230,627.20-345,908.40-72,871.60

Finding the Fourth Proportional to 230,627.20, 345,908.40 and 72,871.60

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Solution

The fourth proportional to 230,627.20, 345,908.40 and 72,871.60 is: 109,297.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,627.20 : 345,908.40 = 72,871.60 : x
  2. Step 2: Convert to fraction form
    230,627.20/345,908.40 = 72,871.60/x
  3. Step 3: Cross multiply
    230,627.20x = 345,908.40 × 72,871.60
  4. Step 4: Simplify right side
    230,627.20x = 25,206,898,561.44
  5. Step 5: Solve for x
    x = 25,206,898,561.44/230,627.20
  6. Step 6: Final answer
    x = 109,297.16

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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.