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Finding the Fourth Proportional to 375,448.52, 518,114.66 and 203,363.21

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Solution

The fourth proportional to 375,448.52, 518,114.66 and 203,363.21 is: 280,638.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,448.52 : 518,114.66 = 203,363.21 : x
  2. Step 2: Convert to fraction form
    375,448.52/518,114.66 = 203,363.21/x
  3. Step 3: Cross multiply
    375,448.52x = 518,114.66 × 203,363.21
  4. Step 4: Simplify right side
    375,448.52x = 105,365,456,798.27
  5. Step 5: Solve for x
    x = 105,365,456,798.27/375,448.52
  6. Step 6: Final answer
    x = 280,638.90

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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.