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Finding the Fourth Proportional to 314,891.69, 472,249.71 and 87,132.44

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Solution

The fourth proportional to 314,891.69, 472,249.71 and 87,132.44 is: 130,674.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,891.69 : 472,249.71 = 87,132.44 : x
  2. Step 2: Convert to fraction form
    314,891.69/472,249.71 = 87,132.44/x
  3. Step 3: Cross multiply
    314,891.69x = 472,249.71 × 87,132.44
  4. Step 4: Simplify right side
    314,891.69x = 41,148,270,702.22
  5. Step 5: Solve for x
    x = 41,148,270,702.22/314,891.69
  6. Step 6: Final answer
    x = 130,674.36

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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.