Home / 222,002.91-306,357.80-121,398.75

Finding the Fourth Proportional to 222,002.91, 306,357.80 and 121,398.75

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Solution

The fourth proportional to 222,002.91, 306,357.80 and 121,398.75 is: 167,526.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,002.91 : 306,357.80 = 121,398.75 : x
  2. Step 2: Convert to fraction form
    222,002.91/306,357.80 = 121,398.75/x
  3. Step 3: Cross multiply
    222,002.91x = 306,357.80 × 121,398.75
  4. Step 4: Simplify right side
    222,002.91x = 37,191,453,365.76
  5. Step 5: Solve for x
    x = 37,191,453,365.76/222,002.91
  6. Step 6: Final answer
    x = 167,526.87

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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.