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Finding the Fourth Proportional to 354,442.99, 488,854.86 and 227,130.43

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Solution

The fourth proportional to 354,442.99, 488,854.86 and 227,130.43 is: 313,262.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,442.99 : 488,854.86 = 227,130.43 : x
  2. Step 2: Convert to fraction form
    354,442.99/488,854.86 = 227,130.43/x
  3. Step 3: Cross multiply
    354,442.99x = 488,854.86 × 227,130.43
  4. Step 4: Simplify right side
    354,442.99x = 111,033,812,115.12
  5. Step 5: Solve for x
    x = 111,033,812,115.12/354,442.99
  6. Step 6: Final answer
    x = 313,262.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.