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Finding the Fourth Proportional to 171,490.60, 236,410.25 and 120,344.87

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Solution

The fourth proportional to 171,490.60, 236,410.25 and 120,344.87 is: 165,902.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,490.60 : 236,410.25 = 120,344.87 : x
  2. Step 2: Convert to fraction form
    171,490.60/236,410.25 = 120,344.87/x
  3. Step 3: Cross multiply
    171,490.60x = 236,410.25 × 120,344.87
  4. Step 4: Simplify right side
    171,490.60x = 28,450,760,792.22
  5. Step 5: Solve for x
    x = 28,450,760,792.22/171,490.60
  6. Step 6: Final answer
    x = 165,902.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.