Home / 397,110.90-548,016.64-215,823.29

Finding the Fourth Proportional to 397,110.90, 548,016.64 and 215,823.29

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Solution

The fourth proportional to 397,110.90, 548,016.64 and 215,823.29 is: 297,838.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,110.90 : 548,016.64 = 215,823.29 : x
  2. Step 2: Convert to fraction form
    397,110.90/548,016.64 = 215,823.29/x
  3. Step 3: Cross multiply
    397,110.90x = 548,016.64 × 215,823.29
  4. Step 4: Simplify right side
    397,110.90x = 118,274,750,939.90
  5. Step 5: Solve for x
    x = 118,274,750,939.90/397,110.90
  6. Step 6: Final answer
    x = 297,838.08

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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.