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Finding the Fourth Proportional to 437,335.40, 656,294.70 and 200,556.20

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Solution

The fourth proportional to 437,335.40, 656,294.70 and 200,556.20 is: 300,968.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,335.40 : 656,294.70 = 200,556.20 : x
  2. Step 2: Convert to fraction form
    437,335.40/656,294.70 = 200,556.20/x
  3. Step 3: Cross multiply
    437,335.40x = 656,294.70 × 200,556.20
  4. Step 4: Simplify right side
    437,335.40x = 131,623,971,112.14
  5. Step 5: Solve for x
    x = 131,623,971,112.14/437,335.40
  6. Step 6: Final answer
    x = 300,968.02

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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.