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Finding the Fourth Proportional to 395,433.27, 545,675.88 and 223,386.54

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Solution

The fourth proportional to 395,433.27, 545,675.88 and 223,386.54 is: 308,260.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,433.27 : 545,675.88 = 223,386.54 : x
  2. Step 2: Convert to fraction form
    395,433.27/545,675.88 = 223,386.54/x
  3. Step 3: Cross multiply
    395,433.27x = 545,675.88 × 223,386.54
  4. Step 4: Simplify right side
    395,433.27x = 121,896,646,794.66
  5. Step 5: Solve for x
    x = 121,896,646,794.66/395,433.27
  6. Step 6: Final answer
    x = 308,260.98

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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.