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Finding the Fourth Proportional to 661,479.36, 992,215.34 and 240,755.22

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Solution

The fourth proportional to 661,479.36, 992,215.34 and 240,755.22 is: 361,131.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,479.36 : 992,215.34 = 240,755.22 : x
  2. Step 2: Convert to fraction form
    661,479.36/992,215.34 = 240,755.22/x
  3. Step 3: Cross multiply
    661,479.36x = 992,215.34 × 240,755.22
  4. Step 4: Simplify right side
    661,479.36x = 238,881,022,469.08
  5. Step 5: Solve for x
    x = 238,881,022,469.08/661,479.36
  6. Step 6: Final answer
    x = 361,131.48

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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.