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Finding the Fourth Proportional to 324,416.70, 486,293.85 and 219,246.30

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Solution

The fourth proportional to 324,416.70, 486,293.85 and 219,246.30 is: 328,645.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,416.70 : 486,293.85 = 219,246.30 : x
  2. Step 2: Convert to fraction form
    324,416.70/486,293.85 = 219,246.30/x
  3. Step 3: Cross multiply
    324,416.70x = 486,293.85 × 219,246.30
  4. Step 4: Simplify right side
    324,416.70x = 106,618,127,325.26
  5. Step 5: Solve for x
    x = 106,618,127,325.26/324,416.70
  6. Step 6: Final answer
    x = 328,645.62

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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.