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Finding the Fourth Proportional to 220,750.62, 304,661.79 and 123,970.38

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Solution

The fourth proportional to 220,750.62, 304,661.79 and 123,970.38 is: 171,093.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,750.62 : 304,661.79 = 123,970.38 : x
  2. Step 2: Convert to fraction form
    220,750.62/304,661.79 = 123,970.38/x
  3. Step 3: Cross multiply
    220,750.62x = 304,661.79 × 123,970.38
  4. Step 4: Simplify right side
    220,750.62x = 37,769,037,877.78
  5. Step 5: Solve for x
    x = 37,769,037,877.78/220,750.62
  6. Step 6: Final answer
    x = 171,093.69

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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.