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Finding the Fourth Proportional to 230,736, 318,415.68 and 124,752

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Solution

The fourth proportional to 230,736, 318,415.68 and 124,752 is: 172,157.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,736 : 318,415.68 = 124,752 : x
  2. Step 2: Convert to fraction form
    230,736/318,415.68 = 124,752/x
  3. Step 3: Cross multiply
    230,736x = 318,415.68 × 124,752
  4. Step 4: Simplify right side
    230,736x = 39,722,992,911.36
  5. Step 5: Solve for x
    x = 39,722,992,911.36/230,736
  6. Step 6: Final answer
    x = 172,157.76

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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.