Home / 243,787.20-365,896.80-143,822.40

Finding the Fourth Proportional to 243,787.20, 365,896.80 and 143,822.40

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Solution

The fourth proportional to 243,787.20, 365,896.80 and 143,822.40 is: 215,861.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,787.20 : 365,896.80 = 143,822.40 : x
  2. Step 2: Convert to fraction form
    243,787.20/365,896.80 = 143,822.40/x
  3. Step 3: Cross multiply
    243,787.20x = 365,896.80 × 143,822.40
  4. Step 4: Simplify right side
    243,787.20x = 52,624,155,928.32
  5. Step 5: Solve for x
    x = 52,624,155,928.32/243,787.20
  6. Step 6: Final answer
    x = 215,861.03

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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.