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Finding the Fourth Proportional to 353,064.32, 487,463.35 and 271,246.82

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Solution

The fourth proportional to 353,064.32, 487,463.35 and 271,246.82 is: 374,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,064.32 : 487,463.35 = 271,246.82 : x
  2. Step 2: Convert to fraction form
    353,064.32/487,463.35 = 271,246.82/x
  3. Step 3: Cross multiply
    353,064.32x = 487,463.35 × 271,246.82
  4. Step 4: Simplify right side
    353,064.32x = 132,222,885,450.82
  5. Step 5: Solve for x
    x = 132,222,885,450.82/353,064.32
  6. Step 6: Final answer
    x = 374,500.85

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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.