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Finding the Fourth Proportional to 251,178.40, 376,767.60 and 144,890.20

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Solution

The fourth proportional to 251,178.40, 376,767.60 and 144,890.20 is: 217,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,178.40 : 376,767.60 = 144,890.20 : x
  2. Step 2: Convert to fraction form
    251,178.40/376,767.60 = 144,890.20/x
  3. Step 3: Cross multiply
    251,178.40x = 376,767.60 × 144,890.20
  4. Step 4: Simplify right side
    251,178.40x = 54,589,932,917.52
  5. Step 5: Solve for x
    x = 54,589,932,917.52/251,178.40
  6. Step 6: Final answer
    x = 217,335.30

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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.