Home / 260,223.03-390,335.76-80,306.24

Finding the Fourth Proportional to 260,223.03, 390,335.76 and 80,306.24

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Solution

The fourth proportional to 260,223.03, 390,335.76 and 80,306.24 is: 120,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,223.03 : 390,335.76 = 80,306.24 : x
  2. Step 2: Convert to fraction form
    260,223.03/390,335.76 = 80,306.24/x
  3. Step 3: Cross multiply
    260,223.03x = 390,335.76 × 80,306.24
  4. Step 4: Simplify right side
    260,223.03x = 31,346,397,223.14
  5. Step 5: Solve for x
    x = 31,346,397,223.14/260,223.03
  6. Step 6: Final answer
    x = 120,459.73

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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.