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Finding the Fourth Proportional to 298,896.71, 448,033.66 and 130,371.79

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Solution

The fourth proportional to 298,896.71, 448,033.66 and 130,371.79 is: 195,421.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,896.71 : 448,033.66 = 130,371.79 : x
  2. Step 2: Convert to fraction form
    298,896.71/448,033.66 = 130,371.79/x
  3. Step 3: Cross multiply
    298,896.71x = 448,033.66 × 130,371.79
  4. Step 4: Simplify right side
    298,896.71x = 58,410,947,342.42
  5. Step 5: Solve for x
    x = 58,410,947,342.42/298,896.71
  6. Step 6: Final answer
    x = 195,421.85

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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.