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Finding the Fourth Proportional to 222,102.82, 306,509.28 and 121,500.82

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Solution

The fourth proportional to 222,102.82, 306,509.28 and 121,500.82 is: 167,675.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,102.82 : 306,509.28 = 121,500.82 : x
  2. Step 2: Convert to fraction form
    222,102.82/306,509.28 = 121,500.82/x
  3. Step 3: Cross multiply
    222,102.82x = 306,509.28 × 121,500.82
  4. Step 4: Simplify right side
    222,102.82x = 37,241,128,857.61
  5. Step 5: Solve for x
    x = 37,241,128,857.61/222,102.82
  6. Step 6: Final answer
    x = 167,675.17

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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.