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Finding the Fourth Proportional to 222,300.13, 306,774.20 and 121,698.13

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Solution

The fourth proportional to 222,300.13, 306,774.20 and 121,698.13 is: 167,943.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,300.13 : 306,774.20 = 121,698.13 : x
  2. Step 2: Convert to fraction form
    222,300.13/306,774.20 = 121,698.13/x
  3. Step 3: Cross multiply
    222,300.13x = 306,774.20 × 121,698.13
  4. Step 4: Simplify right side
    222,300.13x = 37,333,846,472.25
  5. Step 5: Solve for x
    x = 37,333,846,472.25/222,300.13
  6. Step 6: Final answer
    x = 167,943.43

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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.