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Finding the Fourth Proportional to 247,077.44, 370,612.48 and 78,608

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Solution

The fourth proportional to 247,077.44, 370,612.48 and 78,608 is: 117,910.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,077.44 : 370,612.48 = 78,608 : x
  2. Step 2: Convert to fraction form
    247,077.44/370,612.48 = 78,608/x
  3. Step 3: Cross multiply
    247,077.44x = 370,612.48 × 78,608
  4. Step 4: Simplify right side
    247,077.44x = 29,133,105,827.84
  5. Step 5: Solve for x
    x = 29,133,105,827.84/247,077.44
  6. Step 6: Final answer
    x = 117,910.83

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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.