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Finding the Fourth Proportional to 475,358.88, 655,888.80 and 271,344.64

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Solution

The fourth proportional to 475,358.88, 655,888.80 and 271,344.64 is: 374,394.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,358.88 : 655,888.80 = 271,344.64 : x
  2. Step 2: Convert to fraction form
    475,358.88/655,888.80 = 271,344.64/x
  3. Step 3: Cross multiply
    475,358.88x = 655,888.80 × 271,344.64
  4. Step 4: Simplify right side
    475,358.88x = 177,971,910,316.03
  5. Step 5: Solve for x
    x = 177,971,910,316.03/475,358.88
  6. Step 6: Final answer
    x = 374,394.84

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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.