Home / 260,355.27-390,381.17-127,100.55

Finding the Fourth Proportional to 260,355.27, 390,381.17 and 127,100.55

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Solution

The fourth proportional to 260,355.27, 390,381.17 and 127,100.55 is: 190,576.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,355.27 : 390,381.17 = 127,100.55 : x
  2. Step 2: Convert to fraction form
    260,355.27/390,381.17 = 127,100.55/x
  3. Step 3: Cross multiply
    260,355.27x = 390,381.17 × 127,100.55
  4. Step 4: Simplify right side
    260,355.27x = 49,617,660,781.14
  5. Step 5: Solve for x
    x = 49,617,660,781.14/260,355.27
  6. Step 6: Final answer
    x = 190,576.75

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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.