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Finding the Fourth Proportional to 376,039.76, 518,938.88 and 203,957.96

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Solution

The fourth proportional to 376,039.76, 518,938.88 and 203,957.96 is: 281,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,039.76 : 518,938.88 = 203,957.96 : x
  2. Step 2: Convert to fraction form
    376,039.76/518,938.88 = 203,957.96/x
  3. Step 3: Cross multiply
    376,039.76x = 518,938.88 × 203,957.96
  4. Step 4: Simplify right side
    376,039.76x = 105,841,711,715.00
  5. Step 5: Solve for x
    x = 105,841,711,715.00/376,039.76
  6. Step 6: Final answer
    x = 281,464.15

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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.