Home / 260,031.20-390,084.60-110,271.20

Finding the Fourth Proportional to 260,031.20, 390,084.60 and 110,271.20

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Solution

The fourth proportional to 260,031.20, 390,084.60 and 110,271.20 is: 165,422.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,031.20 : 390,084.60 = 110,271.20 : x
  2. Step 2: Convert to fraction form
    260,031.20/390,084.60 = 110,271.20/x
  3. Step 3: Cross multiply
    260,031.20x = 390,084.60 × 110,271.20
  4. Step 4: Simplify right side
    260,031.20x = 43,015,096,943.52
  5. Step 5: Solve for x
    x = 43,015,096,943.52/260,031.20
  6. Step 6: Final answer
    x = 165,422.83

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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.