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Finding the Fourth Proportional to 404,851.20, 606,985.20 and 227,412.60

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Solution

The fourth proportional to 404,851.20, 606,985.20 and 227,412.60 is: 340,955.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,851.20 : 606,985.20 = 227,412.60 : x
  2. Step 2: Convert to fraction form
    404,851.20/606,985.20 = 227,412.60/x
  3. Step 3: Cross multiply
    404,851.20x = 606,985.20 × 227,412.60
  4. Step 4: Simplify right side
    404,851.20x = 138,036,082,493.52
  5. Step 5: Solve for x
    x = 138,036,082,493.52/404,851.20
  6. Step 6: Final answer
    x = 340,955.10

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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.