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Finding the Fourth Proportional to 230,850.90, 318,446.19 and 135,339.21

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Solution

The fourth proportional to 230,850.90, 318,446.19 and 135,339.21 is: 186,693.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,850.90 : 318,446.19 = 135,339.21 : x
  2. Step 2: Convert to fraction form
    230,850.90/318,446.19 = 135,339.21/x
  3. Step 3: Cross multiply
    230,850.90x = 318,446.19 × 135,339.21
  4. Step 4: Simplify right side
    230,850.90x = 43,098,255,782.11
  5. Step 5: Solve for x
    x = 43,098,255,782.11/230,850.90
  6. Step 6: Final answer
    x = 186,693.04

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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.