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Finding the Fourth Proportional to 376,502.72, 519,572.68 and 225,599.72

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Solution

The fourth proportional to 376,502.72, 519,572.68 and 225,599.72 is: 311,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,502.72 : 519,572.68 = 225,599.72 : x
  2. Step 2: Convert to fraction form
    376,502.72/519,572.68 = 225,599.72/x
  3. Step 3: Cross multiply
    376,502.72x = 519,572.68 × 225,599.72
  4. Step 4: Simplify right side
    376,502.72x = 117,215,447,965.79
  5. Step 5: Solve for x
    x = 117,215,447,965.79/376,502.72
  6. Step 6: Final answer
    x = 311,326.97

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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.