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Finding the Fourth Proportional to 223,827.69, 308,872.14 and 121,850.55

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Solution

The fourth proportional to 223,827.69, 308,872.14 and 121,850.55 is: 168,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,827.69 : 308,872.14 = 121,850.55 : x
  2. Step 2: Convert to fraction form
    223,827.69/308,872.14 = 121,850.55/x
  3. Step 3: Cross multiply
    223,827.69x = 308,872.14 × 121,850.55
  4. Step 4: Simplify right side
    223,827.69x = 37,636,240,138.68
  5. Step 5: Solve for x
    x = 37,636,240,138.68/223,827.69
  6. Step 6: Final answer
    x = 168,148.28

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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.