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Finding the Fourth Proportional to 303,478.22, 418,799.97 and 167,512.20

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Solution

The fourth proportional to 303,478.22, 418,799.97 and 167,512.20 is: 231,166.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,478.22 : 418,799.97 = 167,512.20 : x
  2. Step 2: Convert to fraction form
    303,478.22/418,799.97 = 167,512.20/x
  3. Step 3: Cross multiply
    303,478.22x = 418,799.97 × 167,512.20
  4. Step 4: Simplify right side
    303,478.22x = 70,154,104,334.63
  5. Step 5: Solve for x
    x = 70,154,104,334.63/303,478.22
  6. Step 6: Final answer
    x = 231,166.85

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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.