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Finding the Fourth Proportional to 171,858.65, 257,768.87 and 53,520.08

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Solution

The fourth proportional to 171,858.65, 257,768.87 and 53,520.08 is: 80,274.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,858.65 : 257,768.87 = 53,520.08 : x
  2. Step 2: Convert to fraction form
    171,858.65/257,768.87 = 53,520.08/x
  3. Step 3: Cross multiply
    171,858.65x = 257,768.87 × 53,520.08
  4. Step 4: Simplify right side
    171,858.65x = 13,795,808,987.46
  5. Step 5: Solve for x
    x = 13,795,808,987.46/171,858.65
  6. Step 6: Final answer
    x = 80,274.16

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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.