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Finding the Fourth Proportional to 213,375.58, 320,079.71 and 63,604.42

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Solution

The fourth proportional to 213,375.58, 320,079.71 and 63,604.42 is: 95,411.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,375.58 : 320,079.71 = 63,604.42 : x
  2. Step 2: Convert to fraction form
    213,375.58/320,079.71 = 63,604.42/x
  3. Step 3: Cross multiply
    213,375.58x = 320,079.71 × 63,604.42
  4. Step 4: Simplify right side
    213,375.58x = 20,358,483,990.30
  5. Step 5: Solve for x
    x = 20,358,483,990.30/213,375.58
  6. Step 6: Final answer
    x = 95,411.50

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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.