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Finding the Fourth Proportional to 230,450, 318,021.18 and 124,466

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Solution

The fourth proportional to 230,450, 318,021.18 and 124,466 is: 171,763.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,450 : 318,021.18 = 124,466 : x
  2. Step 2: Convert to fraction form
    230,450/318,021.18 = 124,466/x
  3. Step 3: Cross multiply
    230,450x = 318,021.18 × 124,466
  4. Step 4: Simplify right side
    230,450x = 39,582,824,189.88
  5. Step 5: Solve for x
    x = 39,582,824,189.88/230,450
  6. Step 6: Final answer
    x = 171,763.18

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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.