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Finding the Fourth Proportional to 252,020.75, 378,041.76 and 117,211.34

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Solution

The fourth proportional to 252,020.75, 378,041.76 and 117,211.34 is: 175,821.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,020.75 : 378,041.76 = 117,211.34 : x
  2. Step 2: Convert to fraction form
    252,020.75/378,041.76 = 117,211.34/x
  3. Step 3: Cross multiply
    252,020.75x = 378,041.76 × 117,211.34
  4. Step 4: Simplify right side
    252,020.75x = 44,310,781,265.56
  5. Step 5: Solve for x
    x = 44,310,781,265.56/252,020.75
  6. Step 6: Final answer
    x = 175,821.96

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1.5x scale

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.