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Finding the Fourth Proportional to 486,707.10, 671,648.65 and 271,850.30

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Solution

The fourth proportional to 486,707.10, 671,648.65 and 271,850.30 is: 375,149.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,707.10 : 671,648.65 = 271,850.30 : x
  2. Step 2: Convert to fraction form
    486,707.10/671,648.65 = 271,850.30/x
  3. Step 3: Cross multiply
    486,707.10x = 671,648.65 × 271,850.30
  4. Step 4: Simplify right side
    486,707.10x = 182,587,886,997.10
  5. Step 5: Solve for x
    x = 182,587,886,997.10/486,707.10
  6. Step 6: Final answer
    x = 375,149.42

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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.