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Finding the Fourth Proportional to 290,581.56, 401,001.03 and 163,256.04

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Solution

The fourth proportional to 290,581.56, 401,001.03 and 163,256.04 is: 225,292.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,581.56 : 401,001.03 = 163,256.04 : x
  2. Step 2: Convert to fraction form
    290,581.56/401,001.03 = 163,256.04/x
  3. Step 3: Cross multiply
    290,581.56x = 401,001.03 × 163,256.04
  4. Step 4: Simplify right side
    290,581.56x = 65,465,840,193.72
  5. Step 5: Solve for x
    x = 65,465,840,193.72/290,581.56
  6. Step 6: Final answer
    x = 225,292.48

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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.