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Finding the Fourth Proportional to 220,205.19, 303,904.49 and 123,425.48

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Solution

The fourth proportional to 220,205.19, 303,904.49 and 123,425.48 is: 170,339.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,205.19 : 303,904.49 = 123,425.48 : x
  2. Step 2: Convert to fraction form
    220,205.19/303,904.49 = 123,425.48/x
  3. Step 3: Cross multiply
    220,205.19x = 303,904.49 × 123,425.48
  4. Step 4: Simplify right side
    220,205.19x = 37,509,557,552.41
  5. Step 5: Solve for x
    x = 37,509,557,552.41/220,205.19
  6. Step 6: Final answer
    x = 170,339.12

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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.