Home / 331,521.67-497,278.84-198,439.07

Finding the Fourth Proportional to 331,521.67, 497,278.84 and 198,439.07

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Solution

The fourth proportional to 331,521.67, 497,278.84 and 198,439.07 is: 297,656.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,521.67 : 497,278.84 = 198,439.07 : x
  2. Step 2: Convert to fraction form
    331,521.67/497,278.84 = 198,439.07/x
  3. Step 3: Cross multiply
    331,521.67x = 497,278.84 × 198,439.07
  4. Step 4: Simplify right side
    331,521.67x = 98,679,550,540.28
  5. Step 5: Solve for x
    x = 98,679,550,540.28/331,521.67
  6. Step 6: Final answer
    x = 297,656.41

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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.