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Finding the Fourth Proportional to 401,058, 553,460.10 and 239,919.84

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Solution

The fourth proportional to 401,058, 553,460.10 and 239,919.84 is: 331,089.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,058 : 553,460.10 = 239,919.84 : x
  2. Step 2: Convert to fraction form
    401,058/553,460.10 = 239,919.84/x
  3. Step 3: Cross multiply
    401,058x = 553,460.10 × 239,919.84
  4. Step 4: Simplify right side
    401,058x = 132,786,058,638.38
  5. Step 5: Solve for x
    x = 132,786,058,638.38/401,058
  6. Step 6: Final answer
    x = 331,089.42

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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.