Home / 331,018.20-456,744.68-216,266.32

Finding the Fourth Proportional to 331,018.20, 456,744.68 and 216,266.32

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Solution

The fourth proportional to 331,018.20, 456,744.68 and 216,266.32 is: 298,408.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,018.20 : 456,744.68 = 216,266.32 : x
  2. Step 2: Convert to fraction form
    331,018.20/456,744.68 = 216,266.32/x
  3. Step 3: Cross multiply
    331,018.20x = 456,744.68 × 216,266.32
  4. Step 4: Simplify right side
    331,018.20x = 98,778,491,123.18
  5. Step 5: Solve for x
    x = 98,778,491,123.18/331,018.20
  6. Step 6: Final answer
    x = 298,408.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.