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Finding the Fourth Proportional to 631,942.76, 947,966.31 and 205,468.88

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Solution

The fourth proportional to 631,942.76, 947,966.31 and 205,468.88 is: 308,220.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,942.76 : 947,966.31 = 205,468.88 : x
  2. Step 2: Convert to fraction form
    631,942.76/947,966.31 = 205,468.88/x
  3. Step 3: Cross multiply
    631,942.76x = 947,966.31 × 205,468.88
  4. Step 4: Simplify right side
    631,942.76x = 194,777,574,497.64
  5. Step 5: Solve for x
    x = 194,777,574,497.64/631,942.76
  6. Step 6: Final answer
    x = 308,220.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.