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Finding the Fourth Proportional to 318,908.00, 478,296.29 and 141,301.73

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Solution

The fourth proportional to 318,908.00, 478,296.29 and 141,301.73 is: 211,923.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,908.00 : 478,296.29 = 141,301.73 : x
  2. Step 2: Convert to fraction form
    318,908.00/478,296.29 = 141,301.73/x
  3. Step 3: Cross multiply
    318,908.00x = 478,296.29 × 141,301.73
  4. Step 4: Simplify right side
    318,908.00x = 67,584,094,778.58
  5. Step 5: Solve for x
    x = 67,584,094,778.58/318,908.00
  6. Step 6: Final answer
    x = 211,923.48

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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.