Home / 260,350.10-390,448.58-110,589.20

Finding the Fourth Proportional to 260,350.10, 390,448.58 and 110,589.20

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Solution

The fourth proportional to 260,350.10, 390,448.58 and 110,589.20 is: 165,851.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,350.10 : 390,448.58 = 110,589.20 : x
  2. Step 2: Convert to fraction form
    260,350.10/390,448.58 = 110,589.20/x
  3. Step 3: Cross multiply
    260,350.10x = 390,448.58 × 110,589.20
  4. Step 4: Simplify right side
    260,350.10x = 43,179,393,598.15
  5. Step 5: Solve for x
    x = 43,179,393,598.15/260,350.10
  6. Step 6: Final answer
    x = 165,851.27

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1.5x scale

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.