Home / 223,250.81-308,089.59-121,278.29

Finding the Fourth Proportional to 223,250.81, 308,089.59 and 121,278.29

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Solution

The fourth proportional to 223,250.81, 308,089.59 and 121,278.29 is: 167,365.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,250.81 : 308,089.59 = 121,278.29 : x
  2. Step 2: Convert to fraction form
    223,250.81/308,089.59 = 121,278.29/x
  3. Step 3: Cross multiply
    223,250.81x = 308,089.59 × 121,278.29
  4. Step 4: Simplify right side
    223,250.81x = 37,364,577,101.55
  5. Step 5: Solve for x
    x = 37,364,577,101.55/223,250.81
  6. Step 6: Final answer
    x = 167,365.92

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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.