Home / 400,926.97-553,279.16-239,782.02

Finding the Fourth Proportional to 400,926.97, 553,279.16 and 239,782.02

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Solution

The fourth proportional to 400,926.97, 553,279.16 and 239,782.02 is: 330,899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,926.97 : 553,279.16 = 239,782.02 : x
  2. Step 2: Convert to fraction form
    400,926.97/553,279.16 = 239,782.02/x
  3. Step 3: Cross multiply
    400,926.97x = 553,279.16 × 239,782.02
  4. Step 4: Simplify right side
    400,926.97x = 132,666,394,896.78
  5. Step 5: Solve for x
    x = 132,666,394,896.78/400,926.97
  6. Step 6: Final answer
    x = 330,899.16

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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.