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Finding the Fourth Proportional to 303.91, 453.71 and 260.59

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Solution

The fourth proportional to 303.91, 453.71 and 260.59 is: 389.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.91 : 453.71 = 260.59 : x
  2. Step 2: Convert to fraction form
    303.91/453.71 = 260.59/x
  3. Step 3: Cross multiply
    303.91x = 453.71 × 260.59
  4. Step 4: Simplify right side
    303.91x = 118,232.29
  5. Step 5: Solve for x
    x = 118,232.29/303.91
  6. Step 6: Final answer
    x = 389.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.