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Finding the Fourth Proportional to 395,671.87, 546,053.97 and 223,530.13

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Solution

The fourth proportional to 395,671.87, 546,053.97 and 223,530.13 is: 308,486.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,671.87 : 546,053.97 = 223,530.13 : x
  2. Step 2: Convert to fraction form
    395,671.87/546,053.97 = 223,530.13/x
  3. Step 3: Cross multiply
    395,671.87x = 546,053.97 × 223,530.13
  4. Step 4: Simplify right side
    395,671.87x = 122,059,514,901.12
  5. Step 5: Solve for x
    x = 122,059,514,901.12/395,671.87
  6. Step 6: Final answer
    x = 308,486.71

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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.