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Finding the Fourth Proportional to 243,738.15, 365,472.12 and 99,745.11

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Solution

The fourth proportional to 243,738.15, 365,472.12 and 99,745.11 is: 149,562.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,738.15 : 365,472.12 = 99,745.11 : x
  2. Step 2: Convert to fraction form
    243,738.15/365,472.12 = 99,745.11/x
  3. Step 3: Cross multiply
    243,738.15x = 365,472.12 × 99,745.11
  4. Step 4: Simplify right side
    243,738.15x = 36,454,056,811.33
  5. Step 5: Solve for x
    x = 36,454,056,811.33/243,738.15
  6. Step 6: Final answer
    x = 149,562.38

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1.5x scale

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.