Home / 397,276.81-548,239.27-215,988.73

Finding the Fourth Proportional to 397,276.81, 548,239.27 and 215,988.73

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Solution

The fourth proportional to 397,276.81, 548,239.27 and 215,988.73 is: 298,062.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,276.81 : 548,239.27 = 215,988.73 : x
  2. Step 2: Convert to fraction form
    397,276.81/548,239.27 = 215,988.73/x
  3. Step 3: Cross multiply
    397,276.81x = 548,239.27 × 215,988.73
  4. Step 4: Simplify right side
    397,276.81x = 118,413,503,808.75
  5. Step 5: Solve for x
    x = 118,413,503,808.75/397,276.81
  6. Step 6: Final answer
    x = 298,062.97

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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.