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Finding the Fourth Proportional to 324,141.40, 486,212.10 and 166,385.80

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Solution

The fourth proportional to 324,141.40, 486,212.10 and 166,385.80 is: 249,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,141.40 : 486,212.10 = 166,385.80 : x
  2. Step 2: Convert to fraction form
    324,141.40/486,212.10 = 166,385.80/x
  3. Step 3: Cross multiply
    324,141.40x = 486,212.10 × 166,385.80
  4. Step 4: Simplify right side
    324,141.40x = 80,898,789,228.18
  5. Step 5: Solve for x
    x = 80,898,789,228.18/324,141.40
  6. Step 6: Final answer
    x = 249,578.70

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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.