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Finding the Fourth Proportional to 169,186, 253,779 and 58,378

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Solution

The fourth proportional to 169,186, 253,779 and 58,378 is: 87,567

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,186 : 253,779 = 58,378 : x
  2. Step 2: Convert to fraction form
    169,186/253,779 = 58,378/x
  3. Step 3: Cross multiply
    169,186x = 253,779 × 58,378
  4. Step 4: Simplify right side
    169,186x = 14,815,110,462
  5. Step 5: Solve for x
    x = 14,815,110,462/169,186
  6. Step 6: Final answer
    x = 87,567

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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.