Home / 290,790.13-401,286.27-163,465.96

Finding the Fourth Proportional to 290,790.13, 401,286.27 and 163,465.96

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Solution

The fourth proportional to 290,790.13, 401,286.27 and 163,465.96 is: 225,580.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,790.13 : 401,286.27 = 163,465.96 : x
  2. Step 2: Convert to fraction form
    290,790.13/401,286.27 = 163,465.96/x
  3. Step 3: Cross multiply
    290,790.13x = 401,286.27 × 163,465.96
  4. Step 4: Simplify right side
    290,790.13x = 65,596,645,360.37
  5. Step 5: Solve for x
    x = 65,596,645,360.37/290,790.13
  6. Step 6: Final answer
    x = 225,580.71

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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.