Home / 290,730.26-401,179.33-163,403.12

Finding the Fourth Proportional to 290,730.26, 401,179.33 and 163,403.12

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Solution

The fourth proportional to 290,730.26, 401,179.33 and 163,403.12 is: 225,480.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,730.26 : 401,179.33 = 163,403.12 : x
  2. Step 2: Convert to fraction form
    290,730.26/401,179.33 = 163,403.12/x
  3. Step 3: Cross multiply
    290,730.26x = 401,179.33 × 163,403.12
  4. Step 4: Simplify right side
    290,730.26x = 65,553,955,408.71
  5. Step 5: Solve for x
    x = 65,553,955,408.71/290,730.26
  6. Step 6: Final answer
    x = 225,480.33

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1.5x scale

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.