Home / 212,480.28-318,720.59-203,255.39

Finding the Fourth Proportional to 212,480.28, 318,720.59 and 203,255.39

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Solution

The fourth proportional to 212,480.28, 318,720.59 and 203,255.39 is: 304,883.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,480.28 : 318,720.59 = 203,255.39 : x
  2. Step 2: Convert to fraction form
    212,480.28/318,720.59 = 203,255.39/x
  3. Step 3: Cross multiply
    212,480.28x = 318,720.59 × 203,255.39
  4. Step 4: Simplify right side
    212,480.28x = 64,781,678,364.21
  5. Step 5: Solve for x
    x = 64,781,678,364.21/212,480.28
  6. Step 6: Final answer
    x = 304,883.25

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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.