Home / 397,100.32-548,001.36-215,812.96

Finding the Fourth Proportional to 397,100.32, 548,001.36 and 215,812.96

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Solution

The fourth proportional to 397,100.32, 548,001.36 and 215,812.96 is: 297,823.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,100.32 : 548,001.36 = 215,812.96 : x
  2. Step 2: Convert to fraction form
    397,100.32/548,001.36 = 215,812.96/x
  3. Step 3: Cross multiply
    397,100.32x = 548,001.36 × 215,812.96
  4. Step 4: Simplify right side
    397,100.32x = 118,265,795,585.63
  5. Step 5: Solve for x
    x = 118,265,795,585.63/397,100.32
  6. Step 6: Final answer
    x = 297,823.47

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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.