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Finding the Fourth Proportional to 439,655.76, 606,738.72 and 248,665.44

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Solution

The fourth proportional to 439,655.76, 606,738.72 and 248,665.44 is: 343,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,655.76 : 606,738.72 = 248,665.44 : x
  2. Step 2: Convert to fraction form
    439,655.76/606,738.72 = 248,665.44/x
  3. Step 3: Cross multiply
    439,655.76x = 606,738.72 × 248,665.44
  4. Step 4: Simplify right side
    439,655.76x = 150,874,950,773.84
  5. Step 5: Solve for x
    x = 150,874,950,773.84/439,655.76
  6. Step 6: Final answer
    x = 343,166.10

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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.