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Finding the Fourth Proportional to 247,090.32, 369,749.70 and 213,924.60

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Solution

The fourth proportional to 247,090.32, 369,749.70 and 213,924.60 is: 320,120.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,090.32 : 369,749.70 = 213,924.60 : x
  2. Step 2: Convert to fraction form
    247,090.32/369,749.70 = 213,924.60/x
  3. Step 3: Cross multiply
    247,090.32x = 369,749.70 × 213,924.60
  4. Step 4: Simplify right side
    247,090.32x = 79,098,556,672.62
  5. Step 5: Solve for x
    x = 79,098,556,672.62/247,090.32
  6. Step 6: Final answer
    x = 320,120.01

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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.