Home / 345,787.03-518,742.88-156,336.56

Finding the Fourth Proportional to 345,787.03, 518,742.88 and 156,336.56

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Solution

The fourth proportional to 345,787.03, 518,742.88 and 156,336.56 is: 234,533.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,787.03 : 518,742.88 = 156,336.56 : x
  2. Step 2: Convert to fraction form
    345,787.03/518,742.88 = 156,336.56/x
  3. Step 3: Cross multiply
    345,787.03x = 518,742.88 × 156,336.56
  4. Step 4: Simplify right side
    345,787.03x = 81,098,475,764.85
  5. Step 5: Solve for x
    x = 81,098,475,764.85/345,787.03
  6. Step 6: Final answer
    x = 234,533.02

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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.