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Finding the Fourth Proportional to 247,214, 370,802.36 and 78,727.52

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Solution

The fourth proportional to 247,214, 370,802.36 and 78,727.52 is: 118,085.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,214 : 370,802.36 = 78,727.52 : x
  2. Step 2: Convert to fraction form
    247,214/370,802.36 = 78,727.52/x
  3. Step 3: Cross multiply
    247,214x = 370,802.36 × 78,727.52
  4. Step 4: Simplify right side
    247,214x = 29,192,350,212.95
  5. Step 5: Solve for x
    x = 29,192,350,212.95/247,214
  6. Step 6: Final answer
    x = 118,085.34

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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.