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Finding the Fourth Proportional to 222,132.02, 306,549.22 and 121,530.02

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Solution

The fourth proportional to 222,132.02, 306,549.22 and 121,530.02 is: 167,715.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,132.02 : 306,549.22 = 121,530.02 : x
  2. Step 2: Convert to fraction form
    222,132.02/306,549.22 = 121,530.02/x
  3. Step 3: Cross multiply
    222,132.02x = 306,549.22 × 121,530.02
  4. Step 4: Simplify right side
    222,132.02x = 37,254,932,837.58
  5. Step 5: Solve for x
    x = 37,254,932,837.58/222,132.02
  6. Step 6: Final answer
    x = 167,715.28

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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.