Home / 393,040.23-589,531.19-140,291.88

Finding the Fourth Proportional to 393,040.23, 589,531.19 and 140,291.88

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Solution

The fourth proportional to 393,040.23, 589,531.19 and 140,291.88 is: 210,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,040.23 : 589,531.19 = 140,291.88 : x
  2. Step 2: Convert to fraction form
    393,040.23/589,531.19 = 140,291.88/x
  3. Step 3: Cross multiply
    393,040.23x = 589,531.19 × 140,291.88
  4. Step 4: Simplify right side
    393,040.23x = 82,706,438,262.28
  5. Step 5: Solve for x
    x = 82,706,438,262.28/393,040.23
  6. Step 6: Final answer
    x = 210,427.41

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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.