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Finding the Fourth Proportional to 360,104.78, 496,931.20 and 198,956.39

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Solution

The fourth proportional to 360,104.78, 496,931.20 and 198,956.39 is: 274,552.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,104.78 : 496,931.20 = 198,956.39 : x
  2. Step 2: Convert to fraction form
    360,104.78/496,931.20 = 198,956.39/x
  3. Step 3: Cross multiply
    360,104.78x = 496,931.20 × 198,956.39
  4. Step 4: Simplify right side
    360,104.78x = 98,867,634,648.32
  5. Step 5: Solve for x
    x = 98,867,634,648.32/360,104.78
  6. Step 6: Final answer
    x = 274,552.41

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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.