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Finding the Fourth Proportional to 303,355.91, 418,630.66 and 167,389.75

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Solution

The fourth proportional to 303,355.91, 418,630.66 and 167,389.75 is: 230,997.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,355.91 : 418,630.66 = 167,389.75 : x
  2. Step 2: Convert to fraction form
    303,355.91/418,630.66 = 167,389.75/x
  3. Step 3: Cross multiply
    303,355.91x = 418,630.66 × 167,389.75
  4. Step 4: Simplify right side
    303,355.91x = 70,074,481,388.72
  5. Step 5: Solve for x
    x = 70,074,481,388.72/303,355.91
  6. Step 6: Final answer
    x = 230,997.58

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1.5x scale

Why These Related Problems?

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