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Finding the Fourth Proportional to 395,920.71, 546,242.13 and 223,822.04

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Solution

The fourth proportional to 395,920.71, 546,242.13 and 223,822.04 is: 308,801.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,920.71 : 546,242.13 = 223,822.04 : x
  2. Step 2: Convert to fraction form
    395,920.71/546,242.13 = 223,822.04/x
  3. Step 3: Cross multiply
    395,920.71x = 546,242.13 × 223,822.04
  4. Step 4: Simplify right side
    395,920.71x = 122,261,025,139.34
  5. Step 5: Solve for x
    x = 122,261,025,139.34/395,920.71
  6. Step 6: Final answer
    x = 308,801.79

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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.