Home / 290,747.11-401,172.19-169,865.04

Finding the Fourth Proportional to 290,747.11, 401,172.19 and 169,865.04

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Solution

The fourth proportional to 290,747.11, 401,172.19 and 169,865.04 is: 234,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,747.11 : 401,172.19 = 169,865.04 : x
  2. Step 2: Convert to fraction form
    290,747.11/401,172.19 = 169,865.04/x
  3. Step 3: Cross multiply
    290,747.11x = 401,172.19 × 169,865.04
  4. Step 4: Simplify right side
    290,747.11x = 68,145,130,101.24
  5. Step 5: Solve for x
    x = 68,145,130,101.24/290,747.11
  6. Step 6: Final answer
    x = 234,379.39

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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.