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Finding the Fourth Proportional to 395,902.72, 546,796.94 and 268,356.88

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Solution

The fourth proportional to 395,902.72, 546,796.94 and 268,356.88 is: 370,638.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,902.72 : 546,796.94 = 268,356.88 : x
  2. Step 2: Convert to fraction form
    395,902.72/546,796.94 = 268,356.88/x
  3. Step 3: Cross multiply
    395,902.72x = 546,796.94 × 268,356.88
  4. Step 4: Simplify right side
    395,902.72x = 146,736,720,811.95
  5. Step 5: Solve for x
    x = 146,736,720,811.95/395,902.72
  6. Step 6: Final answer
    x = 370,638.32

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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.