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Finding the Fourth Proportional to 251,182.80, 376,263.90 and 156,121.20

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Solution

The fourth proportional to 251,182.80, 376,263.90 and 156,121.20 is: 233,864.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,182.80 : 376,263.90 = 156,121.20 : x
  2. Step 2: Convert to fraction form
    251,182.80/376,263.90 = 156,121.20/x
  3. Step 3: Cross multiply
    251,182.80x = 376,263.90 × 156,121.20
  4. Step 4: Simplify right side
    251,182.80x = 58,742,771,584.68
  5. Step 5: Solve for x
    x = 58,742,771,584.68/251,182.80
  6. Step 6: Final answer
    x = 233,864.63

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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.