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Finding the Fourth Proportional to 168,750.30, 253,128.45 and 50,423.10

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Solution

The fourth proportional to 168,750.30, 253,128.45 and 50,423.10 is: 75,635.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,750.30 : 253,128.45 = 50,423.10 : x
  2. Step 2: Convert to fraction form
    168,750.30/253,128.45 = 50,423.10/x
  3. Step 3: Cross multiply
    168,750.30x = 253,128.45 × 50,423.10
  4. Step 4: Simplify right side
    168,750.30x = 12,763,521,147.20
  5. Step 5: Solve for x
    x = 12,763,521,147.20/168,750.30
  6. Step 6: Final answer
    x = 75,635.55

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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.