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Finding the Fourth Proportional to 270,998.02, 406,350.42 and 215,197.12

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Solution

The fourth proportional to 270,998.02, 406,350.42 and 215,197.12 is: 322,679.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,998.02 : 406,350.42 = 215,197.12 : x
  2. Step 2: Convert to fraction form
    270,998.02/406,350.42 = 215,197.12/x
  3. Step 3: Cross multiply
    270,998.02x = 406,350.42 × 215,197.12
  4. Step 4: Simplify right side
    270,998.02x = 87,445,440,094.79
  5. Step 5: Solve for x
    x = 87,445,440,094.79/270,998.02
  6. Step 6: Final answer
    x = 322,679.26

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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.