Home / 212,331.90-293,138.88-140,808.48

Finding the Fourth Proportional to 212,331.90, 293,138.88 and 140,808.48

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Solution

The fourth proportional to 212,331.90, 293,138.88 and 140,808.48 is: 194,395.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,331.90 : 293,138.88 = 140,808.48 : x
  2. Step 2: Convert to fraction form
    212,331.90/293,138.88 = 140,808.48/x
  3. Step 3: Cross multiply
    212,331.90x = 293,138.88 × 140,808.48
  4. Step 4: Simplify right side
    212,331.90x = 41,276,440,121.70
  5. Step 5: Solve for x
    x = 41,276,440,121.70/212,331.90
  6. Step 6: Final answer
    x = 194,395.85

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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.