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Finding the Fourth Proportional to 290,871.08, 401,397.24 and 161,808.01

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Solution

The fourth proportional to 290,871.08, 401,397.24 and 161,808.01 is: 223,292.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,871.08 : 401,397.24 = 161,808.01 : x
  2. Step 2: Convert to fraction form
    290,871.08/401,397.24 = 161,808.01/x
  3. Step 3: Cross multiply
    290,871.08x = 401,397.24 × 161,808.01
  4. Step 4: Simplify right side
    290,871.08x = 64,949,288,623.89
  5. Step 5: Solve for x
    x = 64,949,288,623.89/290,871.08
  6. Step 6: Final answer
    x = 223,292.36

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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.