Home / 342,376.45-513,743.75-140,122.69

Finding the Fourth Proportional to 342,376.45, 513,743.75 and 140,122.69

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Solution

The fourth proportional to 342,376.45, 513,743.75 and 140,122.69 is: 210,257.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,376.45 : 513,743.75 = 140,122.69 : x
  2. Step 2: Convert to fraction form
    342,376.45/513,743.75 = 140,122.69/x
  3. Step 3: Cross multiply
    342,376.45x = 513,743.75 × 140,122.69
  4. Step 4: Simplify right side
    342,376.45x = 71,987,156,220.69
  5. Step 5: Solve for x
    x = 71,987,156,220.69/342,376.45
  6. Step 6: Final answer
    x = 210,257.32

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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.