Home / 397,270.68-548,244.35-215,994.81

Finding the Fourth Proportional to 397,270.68, 548,244.35 and 215,994.81

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Solution

The fourth proportional to 397,270.68, 548,244.35 and 215,994.81 is: 298,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,270.68 : 548,244.35 = 215,994.81 : x
  2. Step 2: Convert to fraction form
    397,270.68/548,244.35 = 215,994.81/x
  3. Step 3: Cross multiply
    397,270.68x = 548,244.35 × 215,994.81
  4. Step 4: Simplify right side
    397,270.68x = 118,417,934,211.82
  5. Step 5: Solve for x
    x = 118,417,934,211.82/397,270.68
  6. Step 6: Final answer
    x = 298,078.72

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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.