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Finding the Fourth Proportional to 661,856.52, 992,940.30 and 188,548.68

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Solution

The fourth proportional to 661,856.52, 992,940.30 and 188,548.68 is: 282,867.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,856.52 : 992,940.30 = 188,548.68 : x
  2. Step 2: Convert to fraction form
    661,856.52/992,940.30 = 188,548.68/x
  3. Step 3: Cross multiply
    661,856.52x = 992,940.30 × 188,548.68
  4. Step 4: Simplify right side
    661,856.52x = 187,217,582,883.80
  5. Step 5: Solve for x
    x = 187,217,582,883.80/661,856.52
  6. Step 6: Final answer
    x = 282,867.32

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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.