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Finding the Fourth Proportional to 247,520.63, 371,221.47 and 114,272.87

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Solution

The fourth proportional to 247,520.63, 371,221.47 and 114,272.87 is: 171,381.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,520.63 : 371,221.47 = 114,272.87 : x
  2. Step 2: Convert to fraction form
    247,520.63/371,221.47 = 114,272.87/x
  3. Step 3: Cross multiply
    247,520.63x = 371,221.47 × 114,272.87
  4. Step 4: Simplify right side
    247,520.63x = 42,420,540,926.41
  5. Step 5: Solve for x
    x = 42,420,540,926.41/247,520.63
  6. Step 6: Final answer
    x = 171,381.84

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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.