Home / 260,325.22-390,487.84-135,909.22

Finding the Fourth Proportional to 260,325.22, 390,487.84 and 135,909.22

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Solution

The fourth proportional to 260,325.22, 390,487.84 and 135,909.22 is: 203,863.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,325.22 : 390,487.84 = 135,909.22 : x
  2. Step 2: Convert to fraction form
    260,325.22/390,487.84 = 135,909.22/x
  3. Step 3: Cross multiply
    260,325.22x = 390,487.84 × 135,909.22
  4. Step 4: Simplify right side
    260,325.22x = 53,070,897,753.88
  5. Step 5: Solve for x
    x = 53,070,897,753.88/260,325.22
  6. Step 6: Final answer
    x = 203,863.84

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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.