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Finding the Fourth Proportional to 661,669.20, 992,503.80 and 240,958.80

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Solution

The fourth proportional to 661,669.20, 992,503.80 and 240,958.80 is: 361,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,669.20 : 992,503.80 = 240,958.80 : x
  2. Step 2: Convert to fraction form
    661,669.20/992,503.80 = 240,958.80/x
  3. Step 3: Cross multiply
    661,669.20x = 992,503.80 × 240,958.80
  4. Step 4: Simplify right side
    661,669.20x = 239,152,524,643.44
  5. Step 5: Solve for x
    x = 239,152,524,643.44/661,669.20
  6. Step 6: Final answer
    x = 361,438.20

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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.