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Finding the Fourth Proportional to 171,954.30, 257,931.45 and 169,329.90

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Solution

The fourth proportional to 171,954.30, 257,931.45 and 169,329.90 is: 253,994.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,954.30 : 257,931.45 = 169,329.90 : x
  2. Step 2: Convert to fraction form
    171,954.30/257,931.45 = 169,329.90/x
  3. Step 3: Cross multiply
    171,954.30x = 257,931.45 × 169,329.90
  4. Step 4: Simplify right side
    171,954.30x = 43,675,506,635.36
  5. Step 5: Solve for x
    x = 43,675,506,635.36/171,954.30
  6. Step 6: Final answer
    x = 253,994.85

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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.