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Finding the Fourth Proportional to 439,329.28, 606,267.84 and 248,336

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Solution

The fourth proportional to 439,329.28, 606,267.84 and 248,336 is: 342,699.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,329.28 : 606,267.84 = 248,336 : x
  2. Step 2: Convert to fraction form
    439,329.28/606,267.84 = 248,336/x
  3. Step 3: Cross multiply
    439,329.28x = 606,267.84 × 248,336
  4. Step 4: Simplify right side
    439,329.28x = 150,558,130,314.24
  5. Step 5: Solve for x
    x = 150,558,130,314.24/439,329.28
  6. Step 6: Final answer
    x = 342,699.97

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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.