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Finding the Fourth Proportional to 305,988.63, 458,999.34 and 95,642.97

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Solution

The fourth proportional to 305,988.63, 458,999.34 and 95,642.97 is: 143,469.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,988.63 : 458,999.34 = 95,642.97 : x
  2. Step 2: Convert to fraction form
    305,988.63/458,999.34 = 95,642.97/x
  3. Step 3: Cross multiply
    305,988.63x = 458,999.34 × 95,642.97
  4. Step 4: Simplify right side
    305,988.63x = 43,900,060,105.64
  5. Step 5: Solve for x
    x = 43,900,060,105.64/305,988.63
  6. Step 6: Final answer
    x = 143,469.58

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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.