Home / 397,434.92-548,464.96-216,151.40

Finding the Fourth Proportional to 397,434.92, 548,464.96 and 216,151.40

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Solution

The fourth proportional to 397,434.92, 548,464.96 and 216,151.40 is: 298,291.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,434.92 : 548,464.96 = 216,151.40 : x
  2. Step 2: Convert to fraction form
    397,434.92/548,464.96 = 216,151.40/x
  3. Step 3: Cross multiply
    397,434.92x = 548,464.96 × 216,151.40
  4. Step 4: Simplify right side
    397,434.92x = 118,551,468,954.94
  5. Step 5: Solve for x
    x = 118,551,468,954.94/397,434.92
  6. Step 6: Final answer
    x = 298,291.53

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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.