Home / 260,147.02-390,258.60-110,387.20

Finding the Fourth Proportional to 260,147.02, 390,258.60 and 110,387.20

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Solution

The fourth proportional to 260,147.02, 390,258.60 and 110,387.20 is: 165,596.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,147.02 : 390,258.60 = 110,387.20 : x
  2. Step 2: Convert to fraction form
    260,147.02/390,258.60 = 110,387.20/x
  3. Step 3: Cross multiply
    260,147.02x = 390,258.60 × 110,387.20
  4. Step 4: Simplify right side
    260,147.02x = 43,079,554,129.92
  5. Step 5: Solve for x
    x = 43,079,554,129.92/260,147.02
  6. Step 6: Final answer
    x = 165,596.95

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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.