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Finding the Fourth Proportional to 243,219.92, 365,054.13 and 123,360.98

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Solution

The fourth proportional to 243,219.92, 365,054.13 and 123,360.98 is: 185,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,219.92 : 365,054.13 = 123,360.98 : x
  2. Step 2: Convert to fraction form
    243,219.92/365,054.13 = 123,360.98/x
  3. Step 3: Cross multiply
    243,219.92x = 365,054.13 × 123,360.98
  4. Step 4: Simplify right side
    243,219.92x = 45,033,433,404.58
  5. Step 5: Solve for x
    x = 45,033,433,404.58/243,219.92
  6. Step 6: Final answer
    x = 185,155.21

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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.