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Finding the Fourth Proportional to 171,628.34, 257,379.32 and 59,279.72

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Solution

The fourth proportional to 171,628.34, 257,379.32 and 59,279.72 is: 88,897.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,628.34 : 257,379.32 = 59,279.72 : x
  2. Step 2: Convert to fraction form
    171,628.34/257,379.32 = 59,279.72/x
  3. Step 3: Cross multiply
    171,628.34x = 257,379.32 × 59,279.72
  4. Step 4: Simplify right side
    171,628.34x = 15,257,372,884.69
  5. Step 5: Solve for x
    x = 15,257,372,884.69/171,628.34
  6. Step 6: Final answer
    x = 88,897.75

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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.