Home / 212,327.48-318,141.30-123,331.16

Finding the Fourth Proportional to 212,327.48, 318,141.30 and 123,331.16

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Solution

The fourth proportional to 212,327.48, 318,141.30 and 123,331.16 is: 184,793.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,327.48 : 318,141.30 = 123,331.16 : x
  2. Step 2: Convert to fraction form
    212,327.48/318,141.30 = 123,331.16/x
  3. Step 3: Cross multiply
    212,327.48x = 318,141.30 × 123,331.16
  4. Step 4: Simplify right side
    212,327.48x = 39,236,735,572.91
  5. Step 5: Solve for x
    x = 39,236,735,572.91/212,327.48
  6. Step 6: Final answer
    x = 184,793.49

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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.