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Finding the Fourth Proportional to 403,172.60, 604,614.81 and 133,250.79

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Solution

The fourth proportional to 403,172.60, 604,614.81 and 133,250.79 is: 199,828.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,172.60 : 604,614.81 = 133,250.79 : x
  2. Step 2: Convert to fraction form
    403,172.60/604,614.81 = 133,250.79/x
  3. Step 3: Cross multiply
    403,172.60x = 604,614.81 × 133,250.79
  4. Step 4: Simplify right side
    403,172.60x = 80,565,401,078.20
  5. Step 5: Solve for x
    x = 80,565,401,078.20/403,172.60
  6. Step 6: Final answer
    x = 199,828.56

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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.