Home / 290,960.13-401,464.78-170,078.03

Finding the Fourth Proportional to 290,960.13, 401,464.78 and 170,078.03

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Solution

The fourth proportional to 290,960.13, 401,464.78 and 170,078.03 is: 234,672.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,960.13 : 401,464.78 = 170,078.03 : x
  2. Step 2: Convert to fraction form
    290,960.13/401,464.78 = 170,078.03/x
  3. Step 3: Cross multiply
    290,960.13x = 401,464.78 × 170,078.03
  4. Step 4: Simplify right side
    290,960.13x = 68,280,338,448.11
  5. Step 5: Solve for x
    x = 68,280,338,448.11/290,960.13
  6. Step 6: Final answer
    x = 234,672.49

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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.