Home / 253,630.18-380,452.25-76,137.24

Finding the Fourth Proportional to 253,630.18, 380,452.25 and 76,137.24

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Solution

The fourth proportional to 253,630.18, 380,452.25 and 76,137.24 is: 114,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,630.18 : 380,452.25 = 76,137.24 : x
  2. Step 2: Convert to fraction form
    253,630.18/380,452.25 = 76,137.24/x
  3. Step 3: Cross multiply
    253,630.18x = 380,452.25 × 76,137.24
  4. Step 4: Simplify right side
    253,630.18x = 28,966,584,266.79
  5. Step 5: Solve for x
    x = 28,966,584,266.79/253,630.18
  6. Step 6: Final answer
    x = 114,207.96

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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.