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Finding the Fourth Proportional to 305,960.46, 458,687.97 and 135,060.45

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Solution

The fourth proportional to 305,960.46, 458,687.97 and 135,060.45 is: 202,479.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,960.46 : 458,687.97 = 135,060.45 : x
  2. Step 2: Convert to fraction form
    305,960.46/458,687.97 = 135,060.45/x
  3. Step 3: Cross multiply
    305,960.46x = 458,687.97 × 135,060.45
  4. Step 4: Simplify right side
    305,960.46x = 61,950,603,637.79
  5. Step 5: Solve for x
    x = 61,950,603,637.79/305,960.46
  6. Step 6: Final answer
    x = 202,479.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.