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Finding the Fourth Proportional to 230,646, 318,291.48 and 124,662

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Solution

The fourth proportional to 230,646, 318,291.48 and 124,662 is: 172,033.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,646 : 318,291.48 = 124,662 : x
  2. Step 2: Convert to fraction form
    230,646/318,291.48 = 124,662/x
  3. Step 3: Cross multiply
    230,646x = 318,291.48 × 124,662
  4. Step 4: Simplify right side
    230,646x = 39,678,852,479.76
  5. Step 5: Solve for x
    x = 39,678,852,479.76/230,646
  6. Step 6: Final answer
    x = 172,033.56

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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.