Home / 213,440.20-319,739.10-108,334.60

Finding the Fourth Proportional to 213,440.20, 319,739.10 and 108,334.60

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Solution

The fourth proportional to 213,440.20, 319,739.10 and 108,334.60 is: 162,288.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,440.20 : 319,739.10 = 108,334.60 : x
  2. Step 2: Convert to fraction form
    213,440.20/319,739.10 = 108,334.60/x
  3. Step 3: Cross multiply
    213,440.20x = 319,739.10 × 108,334.60
  4. Step 4: Simplify right side
    213,440.20x = 34,638,807,502.86
  5. Step 5: Solve for x
    x = 34,638,807,502.86/213,440.20
  6. Step 6: Final answer
    x = 162,288.11

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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.