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Finding the Fourth Proportional to 247,420.80, 371,131.20 and 184,435.20

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Solution

The fourth proportional to 247,420.80, 371,131.20 and 184,435.20 is: 276,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,420.80 : 371,131.20 = 184,435.20 : x
  2. Step 2: Convert to fraction form
    247,420.80/371,131.20 = 184,435.20/x
  3. Step 3: Cross multiply
    247,420.80x = 371,131.20 × 184,435.20
  4. Step 4: Simplify right side
    247,420.80x = 68,449,657,098.24
  5. Step 5: Solve for x
    x = 68,449,657,098.24/247,420.80
  6. Step 6: Final answer
    x = 276,652.80

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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.