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Finding the Fourth Proportional to 270,001.40, 405,002.10 and 255,567.20

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Solution

The fourth proportional to 270,001.40, 405,002.10 and 255,567.20 is: 383,350.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,001.40 : 405,002.10 = 255,567.20 : x
  2. Step 2: Convert to fraction form
    270,001.40/405,002.10 = 255,567.20/x
  3. Step 3: Cross multiply
    270,001.40x = 405,002.10 × 255,567.20
  4. Step 4: Simplify right side
    270,001.40x = 103,505,252,691.12
  5. Step 5: Solve for x
    x = 103,505,252,691.12/270,001.40
  6. Step 6: Final answer
    x = 383,350.80

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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.