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Finding the Fourth Proportional to 171,636.47, 257,454.75 and 53,307.82

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Solution

The fourth proportional to 171,636.47, 257,454.75 and 53,307.82 is: 79,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,636.47 : 257,454.75 = 53,307.82 : x
  2. Step 2: Convert to fraction form
    171,636.47/257,454.75 = 53,307.82/x
  3. Step 3: Cross multiply
    171,636.47x = 257,454.75 × 53,307.82
  4. Step 4: Simplify right side
    171,636.47x = 13,724,351,992.87
  5. Step 5: Solve for x
    x = 13,724,351,992.87/171,636.47
  6. Step 6: Final answer
    x = 79,961.75

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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.