Home / 397,199.32-548,140.35-215,914.03

Finding the Fourth Proportional to 397,199.32, 548,140.35 and 215,914.03

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Solution

The fourth proportional to 397,199.32, 548,140.35 and 215,914.03 is: 297,964.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,199.32 : 548,140.35 = 215,914.03 : x
  2. Step 2: Convert to fraction form
    397,199.32/548,140.35 = 215,914.03/x
  3. Step 3: Cross multiply
    397,199.32x = 548,140.35 × 215,914.03
  4. Step 4: Simplify right side
    397,199.32x = 118,351,191,974.11
  5. Step 5: Solve for x
    x = 118,351,191,974.11/397,199.32
  6. Step 6: Final answer
    x = 297,964.24

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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.