Home / 212,336.57-318,507.33-84,284.30

Finding the Fourth Proportional to 212,336.57, 318,507.33 and 84,284.30

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Solution

The fourth proportional to 212,336.57, 318,507.33 and 84,284.30 is: 126,427.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,336.57 : 318,507.33 = 84,284.30 : x
  2. Step 2: Convert to fraction form
    212,336.57/318,507.33 = 84,284.30/x
  3. Step 3: Cross multiply
    212,336.57x = 318,507.33 × 84,284.30
  4. Step 4: Simplify right side
    212,336.57x = 26,845,167,353.92
  5. Step 5: Solve for x
    x = 26,845,167,353.92/212,336.57
  6. Step 6: Final answer
    x = 126,427.43

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1.5x scale

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.