Home / 260,324.91-390,041.60-142,079.22

Finding the Fourth Proportional to 260,324.91, 390,041.60 and 142,079.22

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Solution

The fourth proportional to 260,324.91, 390,041.60 and 142,079.22 is: 212,875.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,324.91 : 390,041.60 = 142,079.22 : x
  2. Step 2: Convert to fraction form
    260,324.91/390,041.60 = 142,079.22/x
  3. Step 3: Cross multiply
    260,324.91x = 390,041.60 × 142,079.22
  4. Step 4: Simplify right side
    260,324.91x = 55,416,805,585.16
  5. Step 5: Solve for x
    x = 55,416,805,585.16/260,324.91
  6. Step 6: Final answer
    x = 212,875.54

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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.