Home / 238,236.93-357,399.23-78,321.87

Finding the Fourth Proportional to 238,236.93, 357,399.23 and 78,321.87

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Solution

The fourth proportional to 238,236.93, 357,399.23 and 78,321.87 is: 117,497.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,236.93 : 357,399.23 = 78,321.87 : x
  2. Step 2: Convert to fraction form
    238,236.93/357,399.23 = 78,321.87/x
  3. Step 3: Cross multiply
    238,236.93x = 357,399.23 × 78,321.87
  4. Step 4: Simplify right side
    238,236.93x = 27,992,175,638.55
  5. Step 5: Solve for x
    x = 27,992,175,638.55/238,236.93
  6. Step 6: Final answer
    x = 117,497.21

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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.