Home / 397,734.28-548,867.52-218,886.28

Finding the Fourth Proportional to 397,734.28, 548,867.52 and 218,886.28

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Solution

The fourth proportional to 397,734.28, 548,867.52 and 218,886.28 is: 302,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,734.28 : 548,867.52 = 218,886.28 : x
  2. Step 2: Convert to fraction form
    397,734.28/548,867.52 = 218,886.28/x
  3. Step 3: Cross multiply
    397,734.28x = 548,867.52 × 218,886.28
  4. Step 4: Simplify right side
    397,734.28x = 120,139,569,665.63
  5. Step 5: Solve for x
    x = 120,139,569,665.63/397,734.28
  6. Step 6: Final answer
    x = 302,059.88

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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.