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Finding the Fourth Proportional to 171,002.10, 256,503.15 and 161,816.70

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Solution

The fourth proportional to 171,002.10, 256,503.15 and 161,816.70 is: 242,725.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,002.10 : 256,503.15 = 161,816.70 : x
  2. Step 2: Convert to fraction form
    171,002.10/256,503.15 = 161,816.70/x
  3. Step 3: Cross multiply
    171,002.10x = 256,503.15 × 161,816.70
  4. Step 4: Simplify right side
    171,002.10x = 41,506,493,272.61
  5. Step 5: Solve for x
    x = 41,506,493,272.61/171,002.10
  6. Step 6: Final answer
    x = 242,725.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.