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Finding the Fourth Proportional to 247,031.21, 340,771.59 and 150,264.65

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Solution

The fourth proportional to 247,031.21, 340,771.59 and 150,264.65 is: 207,285.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,031.21 : 340,771.59 = 150,264.65 : x
  2. Step 2: Convert to fraction form
    247,031.21/340,771.59 = 150,264.65/x
  3. Step 3: Cross multiply
    247,031.21x = 340,771.59 × 150,264.65
  4. Step 4: Simplify right side
    247,031.21x = 51,205,921,997.44
  5. Step 5: Solve for x
    x = 51,205,921,997.44/247,031.21
  6. Step 6: Final answer
    x = 207,285.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.