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Finding the Fourth Proportional to 324,011.60, 486,163.20 and 146,427.20

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Solution

The fourth proportional to 324,011.60, 486,163.20 and 146,427.20 is: 219,706.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,011.60 : 486,163.20 = 146,427.20 : x
  2. Step 2: Convert to fraction form
    324,011.60/486,163.20 = 146,427.20/x
  3. Step 3: Cross multiply
    324,011.60x = 486,163.20 × 146,427.20
  4. Step 4: Simplify right side
    324,011.60x = 71,187,516,119.04
  5. Step 5: Solve for x
    x = 71,187,516,119.04/324,011.60
  6. Step 6: Final answer
    x = 219,706.69

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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.