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Finding the Fourth Proportional to 376,612.38, 519,722.73 and 225,709.38

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Solution

The fourth proportional to 376,612.38, 519,722.73 and 225,709.38 is: 311,477.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,612.38 : 519,722.73 = 225,709.38 : x
  2. Step 2: Convert to fraction form
    376,612.38/519,722.73 = 225,709.38/x
  3. Step 3: Cross multiply
    376,612.38x = 519,722.73 × 225,709.38
  4. Step 4: Simplify right side
    376,612.38x = 117,306,295,160.21
  5. Step 5: Solve for x
    x = 117,306,295,160.21/376,612.38
  6. Step 6: Final answer
    x = 311,477.53

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1.5x scale

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.