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Finding the Fourth Proportional to 223,277.34, 308,121.66 and 121,302.12

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Solution

The fourth proportional to 223,277.34, 308,121.66 and 121,302.12 is: 167,396.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,277.34 : 308,121.66 = 121,302.12 : x
  2. Step 2: Convert to fraction form
    223,277.34/308,121.66 = 121,302.12/x
  3. Step 3: Cross multiply
    223,277.34x = 308,121.66 × 121,302.12
  4. Step 4: Simplify right side
    223,277.34x = 37,375,810,575.92
  5. Step 5: Solve for x
    x = 37,375,810,575.92/223,277.34
  6. Step 6: Final answer
    x = 167,396.34

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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.