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Finding the Fourth Proportional to 251,303.74, 376,969.74 and 80,540.32

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Solution

The fourth proportional to 251,303.74, 376,969.74 and 80,540.32 is: 120,815.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,303.74 : 376,969.74 = 80,540.32 : x
  2. Step 2: Convert to fraction form
    251,303.74/376,969.74 = 80,540.32/x
  3. Step 3: Cross multiply
    251,303.74x = 376,969.74 × 80,540.32
  4. Step 4: Simplify right side
    251,303.74x = 30,361,263,489.92
  5. Step 5: Solve for x
    x = 30,361,263,489.92/251,303.74
  6. Step 6: Final answer
    x = 120,815.01

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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.