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Finding the Fourth Proportional to 442,887.38, 611,218.42 and 251,889.38

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Solution

The fourth proportional to 442,887.38, 611,218.42 and 251,889.38 is: 347,626.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,887.38 : 611,218.42 = 251,889.38 : x
  2. Step 2: Convert to fraction form
    442,887.38/611,218.42 = 251,889.38/x
  3. Step 3: Cross multiply
    442,887.38x = 611,218.42 × 251,889.38
  4. Step 4: Simplify right side
    442,887.38x = 153,959,428,858.38
  5. Step 5: Solve for x
    x = 153,959,428,858.38/442,887.38
  6. Step 6: Final answer
    x = 347,626.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.