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Finding the Fourth Proportional to 324,292.80, 447,395.40 and 216,692.40

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Solution

The fourth proportional to 324,292.80, 447,395.40 and 216,692.40 is: 298,949.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,292.80 : 447,395.40 = 216,692.40 : x
  2. Step 2: Convert to fraction form
    324,292.80/447,395.40 = 216,692.40/x
  3. Step 3: Cross multiply
    324,292.80x = 447,395.40 × 216,692.40
  4. Step 4: Simplify right side
    324,292.80x = 96,947,182,974.96
  5. Step 5: Solve for x
    x = 96,947,182,974.96/324,292.80
  6. Step 6: Final answer
    x = 298,949.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.