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Finding the Fourth Proportional to 222,301.05, 306,691.71 and 145,862.34

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Solution

The fourth proportional to 222,301.05, 306,691.71 and 145,862.34 is: 201,235.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,301.05 : 306,691.71 = 145,862.34 : x
  2. Step 2: Convert to fraction form
    222,301.05/306,691.71 = 145,862.34/x
  3. Step 3: Cross multiply
    222,301.05x = 306,691.71 × 145,862.34
  4. Step 4: Simplify right side
    222,301.05x = 44,734,770,479.20
  5. Step 5: Solve for x
    x = 44,734,770,479.20/222,301.05
  6. Step 6: Final answer
    x = 201,235.08

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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.