Home / 223,325.90-308,191.70-121,351.37

Finding the Fourth Proportional to 223,325.90, 308,191.70 and 121,351.37

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Solution

The fourth proportional to 223,325.90, 308,191.70 and 121,351.37 is: 167,465.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,325.90 : 308,191.70 = 121,351.37 : x
  2. Step 2: Convert to fraction form
    223,325.90/308,191.70 = 121,351.37/x
  3. Step 3: Cross multiply
    223,325.90x = 308,191.70 × 121,351.37
  4. Step 4: Simplify right side
    223,325.90x = 37,399,482,869.91
  5. Step 5: Solve for x
    x = 37,399,482,869.91/223,325.90
  6. Step 6: Final answer
    x = 167,465.95

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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.