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Finding the Fourth Proportional to 303,058.16, 418,136.28 and 173,996

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Solution

The fourth proportional to 303,058.16, 418,136.28 and 173,996 is: 240,066.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,058.16 : 418,136.28 = 173,996 : x
  2. Step 2: Convert to fraction form
    303,058.16/418,136.28 = 173,996/x
  3. Step 3: Cross multiply
    303,058.16x = 418,136.28 × 173,996
  4. Step 4: Simplify right side
    303,058.16x = 72,754,040,174.88
  5. Step 5: Solve for x
    x = 72,754,040,174.88/303,058.16
  6. Step 6: Final answer
    x = 240,066.26

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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.