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Finding the Fourth Proportional to 397,281.54, 548,259.32 and 216,005.70

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Solution

The fourth proportional to 397,281.54, 548,259.32 and 216,005.70 is: 298,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,281.54 : 548,259.32 = 216,005.70 : x
  2. Step 2: Convert to fraction form
    397,281.54/548,259.32 = 216,005.70/x
  3. Step 3: Cross multiply
    397,281.54x = 548,259.32 × 216,005.70
  4. Step 4: Simplify right side
    397,281.54x = 118,427,138,198.12
  5. Step 5: Solve for x
    x = 118,427,138,198.12/397,281.54
  6. Step 6: Final answer
    x = 298,093.74

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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.