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Finding the Fourth Proportional to 247,213.25, 370,801.24 and 78,726.77

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Solution

The fourth proportional to 247,213.25, 370,801.24 and 78,726.77 is: 118,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,213.25 : 370,801.24 = 78,726.77 : x
  2. Step 2: Convert to fraction form
    247,213.25/370,801.24 = 78,726.77/x
  3. Step 3: Cross multiply
    247,213.25x = 370,801.24 × 78,726.77
  4. Step 4: Simplify right side
    247,213.25x = 29,191,983,937.19
  5. Step 5: Solve for x
    x = 29,191,983,937.19/247,213.25
  6. Step 6: Final answer
    x = 118,084.22

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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.