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Finding the Fourth Proportional to 397,371.32, 548,333.15 and 225,255.33

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Solution

The fourth proportional to 397,371.32, 548,333.15 and 225,255.33 is: 310,830.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,371.32 : 548,333.15 = 225,255.33 : x
  2. Step 2: Convert to fraction form
    397,371.32/548,333.15 = 225,255.33/x
  3. Step 3: Cross multiply
    397,371.32x = 548,333.15 × 225,255.33
  4. Step 4: Simplify right side
    397,371.32x = 123,514,963,526.91
  5. Step 5: Solve for x
    x = 123,514,963,526.91/397,371.32
  6. Step 6: Final answer
    x = 310,830.09

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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.