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Finding the Fourth Proportional to 324,003.60, 486,005.40 and 190,815.30

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Solution

The fourth proportional to 324,003.60, 486,005.40 and 190,815.30 is: 286,222.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,003.60 : 486,005.40 = 190,815.30 : x
  2. Step 2: Convert to fraction form
    324,003.60/486,005.40 = 190,815.30/x
  3. Step 3: Cross multiply
    324,003.60x = 486,005.40 × 190,815.30
  4. Step 4: Simplify right side
    324,003.60x = 92,737,266,202.62
  5. Step 5: Solve for x
    x = 92,737,266,202.62/324,003.60
  6. Step 6: Final answer
    x = 286,222.95

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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.