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Finding the Fourth Proportional to 397,295.40, 548,143.62 and 227,498.28

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Solution

The fourth proportional to 397,295.40, 548,143.62 and 227,498.28 is: 313,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,295.40 : 548,143.62 = 227,498.28 : x
  2. Step 2: Convert to fraction form
    397,295.40/548,143.62 = 227,498.28/x
  3. Step 3: Cross multiply
    397,295.40x = 548,143.62 × 227,498.28
  4. Step 4: Simplify right side
    397,295.40x = 124,701,730,742.97
  5. Step 5: Solve for x
    x = 124,701,730,742.97/397,295.40
  6. Step 6: Final answer
    x = 313,876.60

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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.