Home / 397,634.72-548,555.10-236,398.28

Finding the Fourth Proportional to 397,634.72, 548,555.10 and 236,398.28

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Solution

The fourth proportional to 397,634.72, 548,555.10 and 236,398.28 is: 326,122.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,634.72 : 548,555.10 = 236,398.28 : x
  2. Step 2: Convert to fraction form
    397,634.72/548,555.10 = 236,398.28/x
  3. Step 3: Cross multiply
    397,634.72x = 548,555.10 × 236,398.28
  4. Step 4: Simplify right side
    397,634.72x = 129,677,482,125.23
  5. Step 5: Solve for x
    x = 129,677,482,125.23/397,634.72
  6. Step 6: Final answer
    x = 326,122.13

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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.