Home / 397,115.31-548,022.72-215,827.67

Finding the Fourth Proportional to 397,115.31, 548,022.72 and 215,827.67

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Solution

The fourth proportional to 397,115.31, 548,022.72 and 215,827.67 is: 297,844.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,115.31 : 548,022.72 = 215,827.67 : x
  2. Step 2: Convert to fraction form
    397,115.31/548,022.72 = 215,827.67/x
  3. Step 3: Cross multiply
    397,115.31x = 548,022.72 × 215,827.67
  4. Step 4: Simplify right side
    397,115.31x = 118,278,466,888.99
  5. Step 5: Solve for x
    x = 118,278,466,888.99/397,115.31
  6. Step 6: Final answer
    x = 297,844.13

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1.5x scale

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.