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Finding the Fourth Proportional to 661,144.34, 992,090.17 and 282,029.26

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Solution

The fourth proportional to 661,144.34, 992,090.17 and 282,029.26 is: 423,203.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,144.34 : 992,090.17 = 282,029.26 : x
  2. Step 2: Convert to fraction form
    661,144.34/992,090.17 = 282,029.26/x
  3. Step 3: Cross multiply
    661,144.34x = 992,090.17 × 282,029.26
  4. Step 4: Simplify right side
    661,144.34x = 279,798,451,537.92
  5. Step 5: Solve for x
    x = 279,798,451,537.92/661,144.34
  6. Step 6: Final answer
    x = 423,203.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.