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Finding the Fourth Proportional to 373,054.38, 514,815.11 and 203,288.50

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Solution

The fourth proportional to 373,054.38, 514,815.11 and 203,288.50 is: 280,538.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,054.38 : 514,815.11 = 203,288.50 : x
  2. Step 2: Convert to fraction form
    373,054.38/514,815.11 = 203,288.50/x
  3. Step 3: Cross multiply
    373,054.38x = 514,815.11 × 203,288.50
  4. Step 4: Simplify right side
    373,054.38x = 104,655,991,489.24
  5. Step 5: Solve for x
    x = 104,655,991,489.24/373,054.38
  6. Step 6: Final answer
    x = 280,538.17

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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.