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Finding the Fourth Proportional to 275,538.72, 413,351.28 and 117,768

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Solution

The fourth proportional to 275,538.72, 413,351.28 and 117,768 is: 176,670.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,538.72 : 413,351.28 = 117,768 : x
  2. Step 2: Convert to fraction form
    275,538.72/413,351.28 = 117,768/x
  3. Step 3: Cross multiply
    275,538.72x = 413,351.28 × 117,768
  4. Step 4: Simplify right side
    275,538.72x = 48,679,553,543.04
  5. Step 5: Solve for x
    x = 48,679,553,543.04/275,538.72
  6. Step 6: Final answer
    x = 176,670.46

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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.