Home / 212,418.20-318,627.30-64,674.20

Finding the Fourth Proportional to 212,418.20, 318,627.30 and 64,674.20

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Solution

The fourth proportional to 212,418.20, 318,627.30 and 64,674.20 is: 97,011.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,418.20 : 318,627.30 = 64,674.20 : x
  2. Step 2: Convert to fraction form
    212,418.20/318,627.30 = 64,674.20/x
  3. Step 3: Cross multiply
    212,418.20x = 318,627.30 × 64,674.20
  4. Step 4: Simplify right side
    212,418.20x = 20,606,965,725.66
  5. Step 5: Solve for x
    x = 20,606,965,725.66/212,418.20
  6. Step 6: Final answer
    x = 97,011.30

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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.