Home / 290,939.85-401,418.53-170,110.83

Finding the Fourth Proportional to 290,939.85, 401,418.53 and 170,110.83

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Solution

The fourth proportional to 290,939.85, 401,418.53 and 170,110.83 is: 234,707.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,939.85 : 401,418.53 = 170,110.83 : x
  2. Step 2: Convert to fraction form
    290,939.85/401,418.53 = 170,110.83/x
  3. Step 3: Cross multiply
    290,939.85x = 401,418.53 × 170,110.83
  4. Step 4: Simplify right side
    290,939.85x = 68,285,641,565.23
  5. Step 5: Solve for x
    x = 68,285,641,565.23/290,939.85
  6. Step 6: Final answer
    x = 234,707.08

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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.