Home / 223,228.19-308,058.21-121,255.64

Finding the Fourth Proportional to 223,228.19, 308,058.21 and 121,255.64

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Solution

The fourth proportional to 223,228.19, 308,058.21 and 121,255.64 is: 167,334.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,228.19 : 308,058.21 = 121,255.64 : x
  2. Step 2: Convert to fraction form
    223,228.19/308,058.21 = 121,255.64/x
  3. Step 3: Cross multiply
    223,228.19x = 308,058.21 × 121,255.64
  4. Step 4: Simplify right side
    223,228.19x = 37,353,795,410.80
  5. Step 5: Solve for x
    x = 37,353,795,410.80/223,228.19
  6. Step 6: Final answer
    x = 167,334.58

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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.