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Finding the Fourth Proportional to 356,885, 535,534.86 and 159,893

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Solution

The fourth proportional to 356,885, 535,534.86 and 159,893 is: 239,932.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,885 : 535,534.86 = 159,893 : x
  2. Step 2: Convert to fraction form
    356,885/535,534.86 = 159,893/x
  3. Step 3: Cross multiply
    356,885x = 535,534.86 × 159,893
  4. Step 4: Simplify right side
    356,885x = 85,628,275,369.98
  5. Step 5: Solve for x
    x = 85,628,275,369.98/356,885
  6. Step 6: Final answer
    x = 239,932.40

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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.