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Finding the Fourth Proportional to 453,908.50, 680,665.80 and 154,308.60

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Solution

The fourth proportional to 453,908.50, 680,665.80 and 154,308.60 is: 231,395.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,908.50 : 680,665.80 = 154,308.60 : x
  2. Step 2: Convert to fraction form
    453,908.50/680,665.80 = 154,308.60/x
  3. Step 3: Cross multiply
    453,908.50x = 680,665.80 × 154,308.60
  4. Step 4: Simplify right side
    453,908.50x = 105,032,586,665.88
  5. Step 5: Solve for x
    x = 105,032,586,665.88/453,908.50
  6. Step 6: Final answer
    x = 231,395.95

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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.