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Finding the Fourth Proportional to 375,492.73, 518,181.12 and 203,412.46

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Solution

The fourth proportional to 375,492.73, 518,181.12 and 203,412.46 is: 280,709.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,492.73 : 518,181.12 = 203,412.46 : x
  2. Step 2: Convert to fraction form
    375,492.73/518,181.12 = 203,412.46/x
  3. Step 3: Cross multiply
    375,492.73x = 518,181.12 × 203,412.46
  4. Step 4: Simplify right side
    375,492.73x = 105,404,496,344.76
  5. Step 5: Solve for x
    x = 105,404,496,344.76/375,492.73
  6. Step 6: Final answer
    x = 280,709.82

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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.