Home / 347,921.72-521,436.52-302,755.32

Finding the Fourth Proportional to 347,921.72, 521,436.52 and 302,755.32

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Solution

The fourth proportional to 347,921.72, 521,436.52 and 302,755.32 is: 453,744.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,921.72 : 521,436.52 = 302,755.32 : x
  2. Step 2: Convert to fraction form
    347,921.72/521,436.52 = 302,755.32/x
  3. Step 3: Cross multiply
    347,921.72x = 521,436.52 × 302,755.32
  4. Step 4: Simplify right side
    347,921.72x = 157,867,680,472.29
  5. Step 5: Solve for x
    x = 157,867,680,472.29/347,921.72
  6. Step 6: Final answer
    x = 453,744.83

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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.