Home / 231,509.72-347,306.16-81,837.38

Finding the Fourth Proportional to 231,509.72, 347,306.16 and 81,837.38

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Solution

The fourth proportional to 231,509.72, 347,306.16 and 81,837.38 is: 122,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,509.72 : 347,306.16 = 81,837.38 : x
  2. Step 2: Convert to fraction form
    231,509.72/347,306.16 = 81,837.38/x
  3. Step 3: Cross multiply
    231,509.72x = 347,306.16 × 81,837.38
  4. Step 4: Simplify right side
    231,509.72x = 28,422,626,192.26
  5. Step 5: Solve for x
    x = 28,422,626,192.26/231,509.72
  6. Step 6: Final answer
    x = 122,770.77

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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.