Home / 319,432.14-440,847.27-238,719.69

Finding the Fourth Proportional to 319,432.14, 440,847.27 and 238,719.69

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Solution

The fourth proportional to 319,432.14, 440,847.27 and 238,719.69 is: 329,456.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,432.14 : 440,847.27 = 238,719.69 : x
  2. Step 2: Convert to fraction form
    319,432.14/440,847.27 = 238,719.69/x
  3. Step 3: Cross multiply
    319,432.14x = 440,847.27 × 238,719.69
  4. Step 4: Simplify right side
    319,432.14x = 105,238,923,631.75
  5. Step 5: Solve for x
    x = 105,238,923,631.75/319,432.14
  6. Step 6: Final answer
    x = 329,456.28

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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.