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Finding the Fourth Proportional to 344,495.64, 516,628.49 and 144,778.80

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Solution

The fourth proportional to 344,495.64, 516,628.49 and 144,778.80 is: 217,119.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,495.64 : 516,628.49 = 144,778.80 : x
  2. Step 2: Convert to fraction form
    344,495.64/516,628.49 = 144,778.80/x
  3. Step 3: Cross multiply
    344,495.64x = 516,628.49 × 144,778.80
  4. Step 4: Simplify right side
    344,495.64x = 74,796,852,104.12
  5. Step 5: Solve for x
    x = 74,796,852,104.12/344,495.64
  6. Step 6: Final answer
    x = 217,119.88

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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.