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Finding the Fourth Proportional to 171,057.70, 256,586.55 and 144,485.65

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Solution

The fourth proportional to 171,057.70, 256,586.55 and 144,485.65 is: 216,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,057.70 : 256,586.55 = 144,485.65 : x
  2. Step 2: Convert to fraction form
    171,057.70/256,586.55 = 144,485.65/x
  3. Step 3: Cross multiply
    171,057.70x = 256,586.55 × 144,485.65
  4. Step 4: Simplify right side
    171,057.70x = 37,073,074,458.01
  5. Step 5: Solve for x
    x = 37,073,074,458.01/171,057.70
  6. Step 6: Final answer
    x = 216,728.48

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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.