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Finding the Fourth Proportional to 309,995.39, 465,165.30 and 167,838.57

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Solution

The fourth proportional to 309,995.39, 465,165.30 and 167,838.57 is: 251,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,995.39 : 465,165.30 = 167,838.57 : x
  2. Step 2: Convert to fraction form
    309,995.39/465,165.30 = 167,838.57/x
  3. Step 3: Cross multiply
    309,995.39x = 465,165.30 × 167,838.57
  4. Step 4: Simplify right side
    309,995.39x = 78,072,678,765.62
  5. Step 5: Solve for x
    x = 78,072,678,765.62/309,995.39
  6. Step 6: Final answer
    x = 251,851.10

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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.