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Finding the Fourth Proportional to 303,458.76, 418,970.34 and 271,572.84

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Solution

The fourth proportional to 303,458.76, 418,970.34 and 271,572.84 is: 374,947.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,458.76 : 418,970.34 = 271,572.84 : x
  2. Step 2: Convert to fraction form
    303,458.76/418,970.34 = 271,572.84/x
  3. Step 3: Cross multiply
    303,458.76x = 418,970.34 × 271,572.84
  4. Step 4: Simplify right side
    303,458.76x = 113,780,965,109.57
  5. Step 5: Solve for x
    x = 113,780,965,109.57/303,458.76
  6. Step 6: Final answer
    x = 374,947.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.