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Finding the Fourth Proportional to 223,203.73, 308,023.41 and 121,230.18

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Solution

The fourth proportional to 223,203.73, 308,023.41 and 121,230.18 is: 167,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,203.73 : 308,023.41 = 121,230.18 : x
  2. Step 2: Convert to fraction form
    223,203.73/308,023.41 = 121,230.18/x
  3. Step 3: Cross multiply
    223,203.73x = 308,023.41 × 121,230.18
  4. Step 4: Simplify right side
    223,203.73x = 37,341,733,438.51
  5. Step 5: Solve for x
    x = 37,341,733,438.51/223,203.73
  6. Step 6: Final answer
    x = 167,298.88

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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.