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Finding the Fourth Proportional to 395,663.30, 593,750.10 and 218,297.60

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Solution

The fourth proportional to 395,663.30, 593,750.10 and 218,297.60 is: 327,587.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,663.30 : 593,750.10 = 218,297.60 : x
  2. Step 2: Convert to fraction form
    395,663.30/593,750.10 = 218,297.60/x
  3. Step 3: Cross multiply
    395,663.30x = 593,750.10 × 218,297.60
  4. Step 4: Simplify right side
    395,663.30x = 129,614,221,829.76
  5. Step 5: Solve for x
    x = 129,614,221,829.76/395,663.30
  6. Step 6: Final answer
    x = 327,587.17

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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.