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Finding the Fourth Proportional to 395,656.80, 593,740.35 and 218,291.10

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Solution

The fourth proportional to 395,656.80, 593,740.35 and 218,291.10 is: 327,577.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,656.80 : 593,740.35 = 218,291.10 : x
  2. Step 2: Convert to fraction form
    395,656.80/593,740.35 = 218,291.10/x
  3. Step 3: Cross multiply
    395,656.80x = 593,740.35 × 218,291.10
  4. Step 4: Simplify right side
    395,656.80x = 129,608,234,115.89
  5. Step 5: Solve for x
    x = 129,608,234,115.89/395,656.80
  6. Step 6: Final answer
    x = 327,577.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.