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Finding the Fourth Proportional to 303,427.16, 418,753.26 and 167,488.12

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Solution

The fourth proportional to 303,427.16, 418,753.26 and 167,488.12 is: 231,146.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,427.16 : 418,753.26 = 167,488.12 : x
  2. Step 2: Convert to fraction form
    303,427.16/418,753.26 = 167,488.12/x
  3. Step 3: Cross multiply
    303,427.16x = 418,753.26 × 167,488.12
  4. Step 4: Simplify right side
    303,427.16x = 70,136,196,261.27
  5. Step 5: Solve for x
    x = 70,136,196,261.27/303,427.16
  6. Step 6: Final answer
    x = 231,146.73

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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.