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Finding the Fourth Proportional to 243,361.80, 365,820.30 and 173,723.40

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Solution

The fourth proportional to 243,361.80, 365,820.30 and 173,723.40 is: 261,140.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,361.80 : 365,820.30 = 173,723.40 : x
  2. Step 2: Convert to fraction form
    243,361.80/365,820.30 = 173,723.40/x
  3. Step 3: Cross multiply
    243,361.80x = 365,820.30 × 173,723.40
  4. Step 4: Simplify right side
    243,361.80x = 63,551,546,305.02
  5. Step 5: Solve for x
    x = 63,551,546,305.02/243,361.80
  6. Step 6: Final answer
    x = 261,140.19

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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.