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Finding the Fourth Proportional to 165,640.40, 248,167.80 and 160,158.80

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Solution

The fourth proportional to 165,640.40, 248,167.80 and 160,158.80 is: 239,955.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,640.40 : 248,167.80 = 160,158.80 : x
  2. Step 2: Convert to fraction form
    165,640.40/248,167.80 = 160,158.80/x
  3. Step 3: Cross multiply
    165,640.40x = 248,167.80 × 160,158.80
  4. Step 4: Simplify right side
    165,640.40x = 39,746,257,046.64
  5. Step 5: Solve for x
    x = 39,746,257,046.64/165,640.40
  6. Step 6: Final answer
    x = 239,955.09

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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.