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Finding the Fourth Proportional to 324,003.80, 486,005.70 and 243,522.20

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Solution

The fourth proportional to 324,003.80, 486,005.70 and 243,522.20 is: 365,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,003.80 : 486,005.70 = 243,522.20 : x
  2. Step 2: Convert to fraction form
    324,003.80/486,005.70 = 243,522.20/x
  3. Step 3: Cross multiply
    324,003.80x = 486,005.70 × 243,522.20
  4. Step 4: Simplify right side
    324,003.80x = 118,353,177,276.54
  5. Step 5: Solve for x
    x = 118,353,177,276.54/324,003.80
  6. Step 6: Final answer
    x = 365,283.30

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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.