Home / 211,949.20-318,442.20-159,461.20

Finding the Fourth Proportional to 211,949.20, 318,442.20 and 159,461.20

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Solution

The fourth proportional to 211,949.20, 318,442.20 and 159,461.20 is: 239,581.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,949.20 : 318,442.20 = 159,461.20 : x
  2. Step 2: Convert to fraction form
    211,949.20/318,442.20 = 159,461.20/x
  3. Step 3: Cross multiply
    211,949.20x = 318,442.20 × 159,461.20
  4. Step 4: Simplify right side
    211,949.20x = 50,779,175,342.64
  5. Step 5: Solve for x
    x = 50,779,175,342.64/211,949.20
  6. Step 6: Final answer
    x = 239,581.82

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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.