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Finding the Fourth Proportional to 303,372.87, 418,651.71 and 167,407.98

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Solution

The fourth proportional to 303,372.87, 418,651.71 and 167,407.98 is: 231,021.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,372.87 : 418,651.71 = 167,407.98 : x
  2. Step 2: Convert to fraction form
    303,372.87/418,651.71 = 167,407.98/x
  3. Step 3: Cross multiply
    303,372.87x = 418,651.71 × 167,407.98
  4. Step 4: Simplify right side
    303,372.87x = 70,085,637,094.65
  5. Step 5: Solve for x
    x = 70,085,637,094.65/303,372.87
  6. Step 6: Final answer
    x = 231,021.44

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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.