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Finding the Fourth Proportional to 403,470.39, 605,285.24 and 119,165.79

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Solution

The fourth proportional to 403,470.39, 605,285.24 and 119,165.79 is: 178,772.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,470.39 : 605,285.24 = 119,165.79 : x
  2. Step 2: Convert to fraction form
    403,470.39/605,285.24 = 119,165.79/x
  3. Step 3: Cross multiply
    403,470.39x = 605,285.24 × 119,165.79
  4. Step 4: Simplify right side
    403,470.39x = 72,129,293,204.11
  5. Step 5: Solve for x
    x = 72,129,293,204.11/403,470.39
  6. Step 6: Final answer
    x = 178,772.21

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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.