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Finding the Fourth Proportional to 395,250.66, 545,309.61 and 223,147.14

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Solution

The fourth proportional to 395,250.66, 545,309.61 and 223,147.14 is: 307,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,250.66 : 545,309.61 = 223,147.14 : x
  2. Step 2: Convert to fraction form
    395,250.66/545,309.61 = 223,147.14/x
  3. Step 3: Cross multiply
    395,250.66x = 545,309.61 × 223,147.14
  4. Step 4: Simplify right side
    395,250.66x = 121,684,279,886.02
  5. Step 5: Solve for x
    x = 121,684,279,886.02/395,250.66
  6. Step 6: Final answer
    x = 307,866.10

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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.