Home / 293,378.40-440,359.20-143,787.60

Finding the Fourth Proportional to 293,378.40, 440,359.20 and 143,787.60

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Solution

The fourth proportional to 293,378.40, 440,359.20 and 143,787.60 is: 215,824.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,378.40 : 440,359.20 = 143,787.60 : x
  2. Step 2: Convert to fraction form
    293,378.40/440,359.20 = 143,787.60/x
  3. Step 3: Cross multiply
    293,378.40x = 440,359.20 × 143,787.60
  4. Step 4: Simplify right side
    293,378.40x = 63,318,192,505.92
  5. Step 5: Solve for x
    x = 63,318,192,505.92/293,378.40
  6. Step 6: Final answer
    x = 215,824.32

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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.