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Finding the Fourth Proportional to 171,583.68, 257,304.24 and 66,342

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Solution

The fourth proportional to 171,583.68, 257,304.24 and 66,342 is: 99,485.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,583.68 : 257,304.24 = 66,342 : x
  2. Step 2: Convert to fraction form
    171,583.68/257,304.24 = 66,342/x
  3. Step 3: Cross multiply
    171,583.68x = 257,304.24 × 66,342
  4. Step 4: Simplify right side
    171,583.68x = 17,070,077,890.08
  5. Step 5: Solve for x
    x = 17,070,077,890.08/171,583.68
  6. Step 6: Final answer
    x = 99,485.44

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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.