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Finding the Fourth Proportional to 319,694.79, 441,172.08 and 174,495.78

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Solution

The fourth proportional to 319,694.79, 441,172.08 and 174,495.78 is: 240,800.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,694.79 : 441,172.08 = 174,495.78 : x
  2. Step 2: Convert to fraction form
    319,694.79/441,172.08 = 174,495.78/x
  3. Step 3: Cross multiply
    319,694.79x = 441,172.08 × 174,495.78
  4. Step 4: Simplify right side
    319,694.79x = 76,982,666,213.82
  5. Step 5: Solve for x
    x = 76,982,666,213.82/319,694.79
  6. Step 6: Final answer
    x = 240,800.50

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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.