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Finding the Fourth Proportional to 220,667.89, 304,512.71 and 125,172.54

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Solution

The fourth proportional to 220,667.89, 304,512.71 and 125,172.54 is: 172,733.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,667.89 : 304,512.71 = 125,172.54 : x
  2. Step 2: Convert to fraction form
    220,667.89/304,512.71 = 125,172.54/x
  3. Step 3: Cross multiply
    220,667.89x = 304,512.71 × 125,172.54
  4. Step 4: Simplify right side
    220,667.89x = 38,116,629,372.98
  5. Step 5: Solve for x
    x = 38,116,629,372.98/220,667.89
  6. Step 6: Final answer
    x = 172,733.01

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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.