Home / 274,630.20-378,972.95-152,115.32

Finding the Fourth Proportional to 274,630.20, 378,972.95 and 152,115.32

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Solution

The fourth proportional to 274,630.20, 378,972.95 and 152,115.32 is: 209,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,630.20 : 378,972.95 = 152,115.32 : x
  2. Step 2: Convert to fraction form
    274,630.20/378,972.95 = 152,115.32/x
  3. Step 3: Cross multiply
    274,630.20x = 378,972.95 × 152,115.32
  4. Step 4: Simplify right side
    274,630.20x = 57,647,588,905.15
  5. Step 5: Solve for x
    x = 57,647,588,905.15/274,630.20
  6. Step 6: Final answer
    x = 209,909.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.