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Finding the Fourth Proportional to 253,176.60, 379,764.90 and 103,367.10

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Solution

The fourth proportional to 253,176.60, 379,764.90 and 103,367.10 is: 155,050.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,176.60 : 379,764.90 = 103,367.10 : x
  2. Step 2: Convert to fraction form
    253,176.60/379,764.90 = 103,367.10/x
  3. Step 3: Cross multiply
    253,176.60x = 379,764.90 × 103,367.10
  4. Step 4: Simplify right side
    253,176.60x = 39,255,196,394.79
  5. Step 5: Solve for x
    x = 39,255,196,394.79/253,176.60
  6. Step 6: Final answer
    x = 155,050.65

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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.