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Finding the Fourth Proportional to 240,185.57, 360,156.06 and 80,203.98

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Solution

The fourth proportional to 240,185.57, 360,156.06 and 80,203.98 is: 120,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,185.57 : 360,156.06 = 80,203.98 : x
  2. Step 2: Convert to fraction form
    240,185.57/360,156.06 = 80,203.98/x
  3. Step 3: Cross multiply
    240,185.57x = 360,156.06 × 80,203.98
  4. Step 4: Simplify right side
    240,185.57x = 28,885,949,433.12
  5. Step 5: Solve for x
    x = 28,885,949,433.12/240,185.57
  6. Step 6: Final answer
    x = 120,265.13

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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.