Home / 219,785.40-329,418.90-114,550.20

Finding the Fourth Proportional to 219,785.40, 329,418.90 and 114,550.20

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Solution

The fourth proportional to 219,785.40, 329,418.90 and 114,550.20 is: 171,690.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,785.40 : 329,418.90 = 114,550.20 : x
  2. Step 2: Convert to fraction form
    219,785.40/329,418.90 = 114,550.20/x
  3. Step 3: Cross multiply
    219,785.40x = 329,418.90 × 114,550.20
  4. Step 4: Simplify right side
    219,785.40x = 37,735,000,878.78
  5. Step 5: Solve for x
    x = 37,735,000,878.78/219,785.40
  6. Step 6: Final answer
    x = 171,690.21

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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.