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Finding the Fourth Proportional to 160,255.98, 240,318.36 and 71,448.75

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Solution

The fourth proportional to 160,255.98, 240,318.36 and 71,448.75 is: 107,143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,255.98 : 240,318.36 = 71,448.75 : x
  2. Step 2: Convert to fraction form
    160,255.98/240,318.36 = 71,448.75/x
  3. Step 3: Cross multiply
    160,255.98x = 240,318.36 × 71,448.75
  4. Step 4: Simplify right side
    160,255.98x = 17,170,446,424.05
  5. Step 5: Solve for x
    x = 17,170,446,424.05/160,255.98
  6. Step 6: Final answer
    x = 107,143.87

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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.