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Finding the Fourth Proportional to 372,658.58, 514,260.76 and 217,636.54

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Solution

The fourth proportional to 372,658.58, 514,260.76 and 217,636.54 is: 300,333.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,658.58 : 514,260.76 = 217,636.54 : x
  2. Step 2: Convert to fraction form
    372,658.58/514,260.76 = 217,636.54/x
  3. Step 3: Cross multiply
    372,658.58x = 514,260.76 × 217,636.54
  4. Step 4: Simplify right side
    372,658.58x = 111,921,932,464.17
  5. Step 5: Solve for x
    x = 111,921,932,464.17/372,658.58
  6. Step 6: Final answer
    x = 300,333.71

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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.