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Finding the Fourth Proportional to 165,674.70, 248,512.05 and 143,124.30

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Solution

The fourth proportional to 165,674.70, 248,512.05 and 143,124.30 is: 214,686.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,674.70 : 248,512.05 = 143,124.30 : x
  2. Step 2: Convert to fraction form
    165,674.70/248,512.05 = 143,124.30/x
  3. Step 3: Cross multiply
    165,674.70x = 248,512.05 × 143,124.30
  4. Step 4: Simplify right side
    165,674.70x = 35,568,113,197.82
  5. Step 5: Solve for x
    x = 35,568,113,197.82/165,674.70
  6. Step 6: Final answer
    x = 214,686.45

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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.