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Finding the Fourth Proportional to 251,173.20, 376,103.70 and 239,363.40

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Solution

The fourth proportional to 251,173.20, 376,103.70 and 239,363.40 is: 358,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,173.20 : 376,103.70 = 239,363.40 : x
  2. Step 2: Convert to fraction form
    251,173.20/376,103.70 = 239,363.40/x
  3. Step 3: Cross multiply
    251,173.20x = 376,103.70 × 239,363.40
  4. Step 4: Simplify right side
    251,173.20x = 90,025,460,384.58
  5. Step 5: Solve for x
    x = 90,025,460,384.58/251,173.20
  6. Step 6: Final answer
    x = 358,419.85

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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.