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Finding the Fourth Proportional to 375,992.79, 518,866.52 and 203,914.55

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Solution

The fourth proportional to 375,992.79, 518,866.52 and 203,914.55 is: 281,400.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,992.79 : 518,866.52 = 203,914.55 : x
  2. Step 2: Convert to fraction form
    375,992.79/518,866.52 = 203,914.55/x
  3. Step 3: Cross multiply
    375,992.79x = 518,866.52 × 203,914.55
  4. Step 4: Simplify right side
    375,992.79x = 105,804,432,935.87
  5. Step 5: Solve for x
    x = 105,804,432,935.87/375,992.79
  6. Step 6: Final answer
    x = 281,400.16

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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.