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Finding the Fourth Proportional to 373,653.94, 515,654.86 and 203,897.38

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Solution

The fourth proportional to 373,653.94, 515,654.86 and 203,897.38 is: 281,385.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,653.94 : 515,654.86 = 203,897.38 : x
  2. Step 2: Convert to fraction form
    373,653.94/515,654.86 = 203,897.38/x
  3. Step 3: Cross multiply
    373,653.94x = 515,654.86 × 203,897.38
  4. Step 4: Simplify right side
    373,653.94x = 105,140,674,938.27
  5. Step 5: Solve for x
    x = 105,140,674,938.27/373,653.94
  6. Step 6: Final answer
    x = 281,385.16

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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.