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Finding the Fourth Proportional to 245,575.20, 368,449.20 and 120,832.80

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Solution

The fourth proportional to 245,575.20, 368,449.20 and 120,832.80 is: 181,291.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,575.20 : 368,449.20 = 120,832.80 : x
  2. Step 2: Convert to fraction form
    245,575.20/368,449.20 = 120,832.80/x
  3. Step 3: Cross multiply
    245,575.20x = 368,449.20 × 120,832.80
  4. Step 4: Simplify right side
    245,575.20x = 44,520,748,493.76
  5. Step 5: Solve for x
    x = 44,520,748,493.76/245,575.20
  6. Step 6: Final answer
    x = 181,291.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.