Home / 397,876.96-596,921.52-145,180.72

Finding the Fourth Proportional to 397,876.96, 596,921.52 and 145,180.72

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Solution

The fourth proportional to 397,876.96, 596,921.52 and 145,180.72 is: 217,809.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,876.96 : 596,921.52 = 145,180.72 : x
  2. Step 2: Convert to fraction form
    397,876.96/596,921.52 = 145,180.72/x
  3. Step 3: Cross multiply
    397,876.96x = 596,921.52 × 145,180.72
  4. Step 4: Simplify right side
    397,876.96x = 86,661,496,057.09
  5. Step 5: Solve for x
    x = 86,661,496,057.09/397,876.96
  6. Step 6: Final answer
    x = 217,809.79

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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.