Home / 222,030.72-306,396.12-121,426.56

Finding the Fourth Proportional to 222,030.72, 306,396.12 and 121,426.56

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Solution

The fourth proportional to 222,030.72, 306,396.12 and 121,426.56 is: 167,565.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,030.72 : 306,396.12 = 121,426.56 : x
  2. Step 2: Convert to fraction form
    222,030.72/306,396.12 = 121,426.56/x
  3. Step 3: Cross multiply
    222,030.72x = 306,396.12 × 121,426.56
  4. Step 4: Simplify right side
    222,030.72x = 37,204,626,848.95
  5. Step 5: Solve for x
    x = 37,204,626,848.95/222,030.72
  6. Step 6: Final answer
    x = 167,565.22

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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.