Home / 381,815.20-572,787.60-115,573.60

Finding the Fourth Proportional to 381,815.20, 572,787.60 and 115,573.60

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Solution

The fourth proportional to 381,815.20, 572,787.60 and 115,573.60 is: 173,380.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,815.20 : 572,787.60 = 115,573.60 : x
  2. Step 2: Convert to fraction form
    381,815.20/572,787.60 = 115,573.60/x
  3. Step 3: Cross multiply
    381,815.20x = 572,787.60 × 115,573.60
  4. Step 4: Simplify right side
    381,815.20x = 66,199,124,967.36
  5. Step 5: Solve for x
    x = 66,199,124,967.36/381,815.20
  6. Step 6: Final answer
    x = 173,380.01

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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.