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Finding the Fourth Proportional to 247,279.02, 370,914.49 and 78,797.07

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Solution

The fourth proportional to 247,279.02, 370,914.49 and 78,797.07 is: 118,194.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,279.02 : 370,914.49 = 78,797.07 : x
  2. Step 2: Convert to fraction form
    247,279.02/370,914.49 = 78,797.07/x
  3. Step 3: Cross multiply
    247,279.02x = 370,914.49 × 78,797.07
  4. Step 4: Simplify right side
    247,279.02x = 29,226,975,032.54
  5. Step 5: Solve for x
    x = 29,226,975,032.54/247,279.02
  6. Step 6: Final answer
    x = 118,194.32

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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.