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Finding the Fourth Proportional to 221,797.52, 306,081.36 and 121,195.52

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Solution

The fourth proportional to 221,797.52, 306,081.36 and 121,195.52 is: 167,250.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,797.52 : 306,081.36 = 121,195.52 : x
  2. Step 2: Convert to fraction form
    221,797.52/306,081.36 = 121,195.52/x
  3. Step 3: Cross multiply
    221,797.52x = 306,081.36 × 121,195.52
  4. Step 4: Simplify right side
    221,797.52x = 37,095,689,587.51
  5. Step 5: Solve for x
    x = 37,095,689,587.51/221,797.52
  6. Step 6: Final answer
    x = 167,250.25

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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.