Home / 212,335.57-318,505.83-84,283.30

Finding the Fourth Proportional to 212,335.57, 318,505.83 and 84,283.30

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Solution

The fourth proportional to 212,335.57, 318,505.83 and 84,283.30 is: 126,425.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,335.57 : 318,505.83 = 84,283.30 : x
  2. Step 2: Convert to fraction form
    212,335.57/318,505.83 = 84,283.30/x
  3. Step 3: Cross multiply
    212,335.57x = 318,505.83 × 84,283.30
  4. Step 4: Simplify right side
    212,335.57x = 26,844,722,421.64
  5. Step 5: Solve for x
    x = 26,844,722,421.64/212,335.57
  6. Step 6: Final answer
    x = 126,425.93

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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.