Home / 397,257.03-548,225.52-215,981.16

Finding the Fourth Proportional to 397,257.03, 548,225.52 and 215,981.16

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Solution

The fourth proportional to 397,257.03, 548,225.52 and 215,981.16 is: 298,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,257.03 : 548,225.52 = 215,981.16 : x
  2. Step 2: Convert to fraction form
    397,257.03/548,225.52 = 215,981.16/x
  3. Step 3: Cross multiply
    397,257.03x = 548,225.52 × 215,981.16
  4. Step 4: Simplify right side
    397,257.03x = 118,406,383,751.20
  5. Step 5: Solve for x
    x = 118,406,383,751.20/397,257.03
  6. Step 6: Final answer
    x = 298,059.88

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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.