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Finding the Fourth Proportional to 171,354.64, 257,012.42 and 108,369.04

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Solution

The fourth proportional to 171,354.64, 257,012.42 and 108,369.04 is: 162,541.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,354.64 : 257,012.42 = 108,369.04 : x
  2. Step 2: Convert to fraction form
    171,354.64/257,012.42 = 108,369.04/x
  3. Step 3: Cross multiply
    171,354.64x = 257,012.42 × 108,369.04
  4. Step 4: Simplify right side
    171,354.64x = 27,852,189,223.48
  5. Step 5: Solve for x
    x = 27,852,189,223.48/171,354.64
  6. Step 6: Final answer
    x = 162,541.20

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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.