Home / 279,072.90-418,484.07-89,498.34

Finding the Fourth Proportional to 279,072.90, 418,484.07 and 89,498.34

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Solution

The fourth proportional to 279,072.90, 418,484.07 and 89,498.34 is: 134,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,072.90 : 418,484.07 = 89,498.34 : x
  2. Step 2: Convert to fraction form
    279,072.90/418,484.07 = 89,498.34/x
  3. Step 3: Cross multiply
    279,072.90x = 418,484.07 × 89,498.34
  4. Step 4: Simplify right side
    279,072.90x = 37,453,629,581.44
  5. Step 5: Solve for x
    x = 37,453,629,581.44/279,072.90
  6. Step 6: Final answer
    x = 134,207.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.