Home / 397,113.11-548,019.71-215,825.50

Finding the Fourth Proportional to 397,113.11, 548,019.71 and 215,825.50

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Solution

The fourth proportional to 397,113.11, 548,019.71 and 215,825.50 is: 297,841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,113.11 : 548,019.71 = 215,825.50 : x
  2. Step 2: Convert to fraction form
    397,113.11/548,019.71 = 215,825.50/x
  3. Step 3: Cross multiply
    397,113.11x = 548,019.71 × 215,825.50
  4. Step 4: Simplify right side
    397,113.11x = 118,276,628,475.72
  5. Step 5: Solve for x
    x = 118,276,628,475.72/397,113.11
  6. Step 6: Final answer
    x = 297,841.16

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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.