Home / 209,326.11-288,877.64-119,919.39

Finding the Fourth Proportional to 209,326.11, 288,877.64 and 119,919.39

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Solution

The fourth proportional to 209,326.11, 288,877.64 and 119,919.39 is: 165,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,326.11 : 288,877.64 = 119,919.39 : x
  2. Step 2: Convert to fraction form
    209,326.11/288,877.64 = 119,919.39/x
  3. Step 3: Cross multiply
    209,326.11x = 288,877.64 × 119,919.39
  4. Step 4: Simplify right side
    209,326.11x = 34,642,029,773.84
  5. Step 5: Solve for x
    x = 34,642,029,773.84/209,326.11
  6. Step 6: Final answer
    x = 165,493.11

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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.