Home / 260,145.02-390,255.60-110,385.20

Finding the Fourth Proportional to 260,145.02, 390,255.60 and 110,385.20

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Solution

The fourth proportional to 260,145.02, 390,255.60 and 110,385.20 is: 165,593.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,145.02 : 390,255.60 = 110,385.20 : x
  2. Step 2: Convert to fraction form
    260,145.02/390,255.60 = 110,385.20/x
  3. Step 3: Cross multiply
    260,145.02x = 390,255.60 × 110,385.20
  4. Step 4: Simplify right side
    260,145.02x = 43,078,442,457.12
  5. Step 5: Solve for x
    x = 43,078,442,457.12/260,145.02
  6. Step 6: Final answer
    x = 165,593.95

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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.