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Finding the Fourth Proportional to 375,238.67, 517,829.45 and 203,156.60

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Solution

The fourth proportional to 375,238.67, 517,829.45 and 203,156.60 is: 280,356.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,238.67 : 517,829.45 = 203,156.60 : x
  2. Step 2: Convert to fraction form
    375,238.67/517,829.45 = 203,156.60/x
  3. Step 3: Cross multiply
    375,238.67x = 517,829.45 × 203,156.60
  4. Step 4: Simplify right side
    375,238.67x = 105,200,466,836.94
  5. Step 5: Solve for x
    x = 105,200,466,836.94/375,238.67
  6. Step 6: Final answer
    x = 280,356.15

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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.