Home / 260,358.20-389,630.10-155,252.60

Finding the Fourth Proportional to 260,358.20, 389,630.10 and 155,252.60

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Solution

The fourth proportional to 260,358.20, 389,630.10 and 155,252.60 is: 232,337.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,358.20 : 389,630.10 = 155,252.60 : x
  2. Step 2: Convert to fraction form
    260,358.20/389,630.10 = 155,252.60/x
  3. Step 3: Cross multiply
    260,358.20x = 389,630.10 × 155,252.60
  4. Step 4: Simplify right side
    260,358.20x = 60,491,086,063.26
  5. Step 5: Solve for x
    x = 60,491,086,063.26/260,358.20
  6. Step 6: Final answer
    x = 232,337.93

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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.