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Finding the Fourth Proportional to 290,960.68, 401,465.52 and 170,078.57

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Solution

The fourth proportional to 290,960.68, 401,465.52 and 170,078.57 is: 234,673.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,960.68 : 401,465.52 = 170,078.57 : x
  2. Step 2: Convert to fraction form
    290,960.68/401,465.52 = 170,078.57/x
  3. Step 3: Cross multiply
    290,960.68x = 401,465.52 × 170,078.57
  4. Step 4: Simplify right side
    290,960.68x = 68,280,682,549.57
  5. Step 5: Solve for x
    x = 68,280,682,549.57/290,960.68
  6. Step 6: Final answer
    x = 234,673.23

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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.