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Finding the Fourth Proportional to 270,134.90, 405,256.62 and 80,598.14

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Solution

The fourth proportional to 270,134.90, 405,256.62 and 80,598.14 is: 120,913.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,134.90 : 405,256.62 = 80,598.14 : x
  2. Step 2: Convert to fraction form
    270,134.90/405,256.62 = 80,598.14/x
  3. Step 3: Cross multiply
    270,134.90x = 405,256.62 × 80,598.14
  4. Step 4: Simplify right side
    270,134.90x = 32,662,929,794.69
  5. Step 5: Solve for x
    x = 32,662,929,794.69/270,134.90
  6. Step 6: Final answer
    x = 120,913.40

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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.