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Finding the Fourth Proportional to 400,969.26, 553,408.88 and 239,842.04

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Solution

The fourth proportional to 400,969.26, 553,408.88 and 239,842.04 is: 331,024.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,969.26 : 553,408.88 = 239,842.04 : x
  2. Step 2: Convert to fraction form
    400,969.26/553,408.88 = 239,842.04/x
  3. Step 3: Cross multiply
    400,969.26x = 553,408.88 × 239,842.04
  4. Step 4: Simplify right side
    400,969.26x = 132,730,710,767.06
  5. Step 5: Solve for x
    x = 132,730,710,767.06/400,969.26
  6. Step 6: Final answer
    x = 331,024.65

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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.