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Finding the Fourth Proportional to 324,014.40, 486,021.60 and 205,333.20

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Solution

The fourth proportional to 324,014.40, 486,021.60 and 205,333.20 is: 307,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,014.40 : 486,021.60 = 205,333.20 : x
  2. Step 2: Convert to fraction form
    324,014.40/486,021.60 = 205,333.20/x
  3. Step 3: Cross multiply
    324,014.40x = 486,021.60 × 205,333.20
  4. Step 4: Simplify right side
    324,014.40x = 99,796,370,397.12
  5. Step 5: Solve for x
    x = 99,796,370,397.12/324,014.40
  6. Step 6: Final answer
    x = 307,999.80

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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.