Home / 397,288.56-548,268.96-216,012.72

Finding the Fourth Proportional to 397,288.56, 548,268.96 and 216,012.72

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Solution

The fourth proportional to 397,288.56, 548,268.96 and 216,012.72 is: 298,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,288.56 : 548,268.96 = 216,012.72 : x
  2. Step 2: Convert to fraction form
    397,288.56/548,268.96 = 216,012.72/x
  3. Step 3: Cross multiply
    397,288.56x = 548,268.96 × 216,012.72
  4. Step 4: Simplify right side
    397,288.56x = 118,433,069,341.17
  5. Step 5: Solve for x
    x = 118,433,069,341.17/397,288.56
  6. Step 6: Final answer
    x = 298,103.40

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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.