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Finding the Fourth Proportional to 340,367.88, 510,867.08 and 172,006.68

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Solution

The fourth proportional to 340,367.88, 510,867.08 and 172,006.68 is: 258,169.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,367.88 : 510,867.08 = 172,006.68 : x
  2. Step 2: Convert to fraction form
    340,367.88/510,867.08 = 172,006.68/x
  3. Step 3: Cross multiply
    340,367.88x = 510,867.08 × 172,006.68
  4. Step 4: Simplify right side
    340,367.88x = 87,872,550,352.09
  5. Step 5: Solve for x
    x = 87,872,550,352.09/340,367.88
  6. Step 6: Final answer
    x = 258,169.34

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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.