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Finding the Fourth Proportional to 373,262.30, 515,109.71 and 209,921.93

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Solution

The fourth proportional to 373,262.30, 515,109.71 and 209,921.93 is: 289,696.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,262.30 : 515,109.71 = 209,921.93 : x
  2. Step 2: Convert to fraction form
    373,262.30/515,109.71 = 209,921.93/x
  3. Step 3: Cross multiply
    373,262.30x = 515,109.71 × 209,921.93
  4. Step 4: Simplify right side
    373,262.30x = 108,132,824,484.94
  5. Step 5: Solve for x
    x = 108,132,824,484.94/373,262.30
  6. Step 6: Final answer
    x = 289,696.61

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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.