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Finding the Fourth Proportional to 661,480.36, 992,216.84 and 240,756.22

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Solution

The fourth proportional to 661,480.36, 992,216.84 and 240,756.22 is: 361,132.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,480.36 : 992,216.84 = 240,756.22 : x
  2. Step 2: Convert to fraction form
    661,480.36/992,216.84 = 240,756.22/x
  3. Step 3: Cross multiply
    661,480.36x = 992,216.84 × 240,756.22
  4. Step 4: Simplify right side
    661,480.36x = 238,882,375,818.75
  5. Step 5: Solve for x
    x = 238,882,375,818.75/661,480.36
  6. Step 6: Final answer
    x = 361,132.98

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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.