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Finding the Fourth Proportional to 290,460.38, 435,764.49 and 170,618.68

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Solution

The fourth proportional to 290,460.38, 435,764.49 and 170,618.68 is: 255,971.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,460.38 : 435,764.49 = 170,618.68 : x
  2. Step 2: Convert to fraction form
    290,460.38/435,764.49 = 170,618.68/x
  3. Step 3: Cross multiply
    290,460.38x = 435,764.49 × 170,618.68
  4. Step 4: Simplify right side
    290,460.38x = 74,349,560,934.33
  5. Step 5: Solve for x
    x = 74,349,560,934.33/290,460.38
  6. Step 6: Final answer
    x = 255,971.44

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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.