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Finding the Fourth Proportional to 171,011.76, 256,379.28 and 71,246.94

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Solution

The fourth proportional to 171,011.76, 256,379.28 and 71,246.94 is: 106,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,011.76 : 256,379.28 = 71,246.94 : x
  2. Step 2: Convert to fraction form
    171,011.76/256,379.28 = 71,246.94/x
  3. Step 3: Cross multiply
    171,011.76x = 256,379.28 × 71,246.94
  4. Step 4: Simplify right side
    171,011.76x = 18,266,239,179.40
  5. Step 5: Solve for x
    x = 18,266,239,179.40/171,011.76
  6. Step 6: Final answer
    x = 106,812.77

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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.