Home / 389,958.56-584,949.76-133,787.53

Finding the Fourth Proportional to 389,958.56, 584,949.76 and 133,787.53

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Solution

The fourth proportional to 389,958.56, 584,949.76 and 133,787.53 is: 200,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,958.56 : 584,949.76 = 133,787.53 : x
  2. Step 2: Convert to fraction form
    389,958.56/584,949.76 = 133,787.53/x
  3. Step 3: Cross multiply
    389,958.56x = 584,949.76 × 133,787.53
  4. Step 4: Simplify right side
    389,958.56x = 78,258,983,961.21
  5. Step 5: Solve for x
    x = 78,258,983,961.21/389,958.56
  6. Step 6: Final answer
    x = 200,685.39

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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.