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Finding the Fourth Proportional to 171,001.10, 256,501.65 and 161,815.70

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Solution

The fourth proportional to 171,001.10, 256,501.65 and 161,815.70 is: 242,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,001.10 : 256,501.65 = 161,815.70 : x
  2. Step 2: Convert to fraction form
    171,001.10/256,501.65 = 161,815.70/x
  3. Step 3: Cross multiply
    171,001.10x = 256,501.65 × 161,815.70
  4. Step 4: Simplify right side
    171,001.10x = 41,505,994,045.91
  5. Step 5: Solve for x
    x = 41,505,994,045.91/171,001.10
  6. Step 6: Final answer
    x = 242,723.55

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1.5x scale

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.