Home / 209,419.36-288,999.12-113,926.48

Finding the Fourth Proportional to 209,419.36, 288,999.12 and 113,926.48

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Solution

The fourth proportional to 209,419.36, 288,999.12 and 113,926.48 is: 157,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,419.36 : 288,999.12 = 113,926.48 : x
  2. Step 2: Convert to fraction form
    209,419.36/288,999.12 = 113,926.48/x
  3. Step 3: Cross multiply
    209,419.36x = 288,999.12 × 113,926.48
  4. Step 4: Simplify right side
    209,419.36x = 32,924,652,464.70
  5. Step 5: Solve for x
    x = 32,924,652,464.70/209,419.36
  6. Step 6: Final answer
    x = 157,218.76

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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.