Home / 397,432.28-548,460.52-216,148.34

Finding the Fourth Proportional to 397,432.28, 548,460.52 and 216,148.34

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Solution

The fourth proportional to 397,432.28, 548,460.52 and 216,148.34 is: 298,286.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,432.28 : 548,460.52 = 216,148.34 : x
  2. Step 2: Convert to fraction form
    397,432.28/548,460.52 = 216,148.34/x
  3. Step 3: Cross multiply
    397,432.28x = 548,460.52 × 216,148.34
  4. Step 4: Simplify right side
    397,432.28x = 118,548,830,953.54
  5. Step 5: Solve for x
    x = 118,548,830,953.54/397,432.28
  6. Step 6: Final answer
    x = 298,286.87

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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.