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Finding the Fourth Proportional to 439,671.78, 606,725.64 and 248,681.07

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Solution

The fourth proportional to 439,671.78, 606,725.64 and 248,681.07 is: 343,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,671.78 : 606,725.64 = 248,681.07 : x
  2. Step 2: Convert to fraction form
    439,671.78/606,725.64 = 248,681.07/x
  3. Step 3: Cross multiply
    439,671.78x = 606,725.64 × 248,681.07
  4. Step 4: Simplify right side
    439,671.78x = 150,881,181,351.64
  5. Step 5: Solve for x
    x = 150,881,181,351.64/439,671.78
  6. Step 6: Final answer
    x = 343,167.76

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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.