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Finding the Fourth Proportional to 220,221.84, 303,927.35 and 123,425.22

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Solution

The fourth proportional to 220,221.84, 303,927.35 and 123,425.22 is: 170,338.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,221.84 : 303,927.35 = 123,425.22 : x
  2. Step 2: Convert to fraction form
    220,221.84/303,927.35 = 123,425.22/x
  3. Step 3: Cross multiply
    220,221.84x = 303,927.35 × 123,425.22
  4. Step 4: Simplify right side
    220,221.84x = 37,512,300,037.77
  5. Step 5: Solve for x
    x = 37,512,300,037.77/220,221.84
  6. Step 6: Final answer
    x = 170,338.69

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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.