Home / 260,124.04-390,217.32-91,609.52

Finding the Fourth Proportional to 260,124.04, 390,217.32 and 91,609.52

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Solution

The fourth proportional to 260,124.04, 390,217.32 and 91,609.52 is: 137,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,124.04 : 390,217.32 = 91,609.52 : x
  2. Step 2: Convert to fraction form
    260,124.04/390,217.32 = 91,609.52/x
  3. Step 3: Cross multiply
    260,124.04x = 390,217.32 × 91,609.52
  4. Step 4: Simplify right side
    260,124.04x = 35,747,621,380.89
  5. Step 5: Solve for x
    x = 35,747,621,380.89/260,124.04
  6. Step 6: Final answer
    x = 137,425.29

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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.