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Finding the Fourth Proportional to 445.41, 614.73 and 258.84

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Solution

The fourth proportional to 445.41, 614.73 and 258.84 is: 357.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.41 : 614.73 = 258.84 : x
  2. Step 2: Convert to fraction form
    445.41/614.73 = 258.84/x
  3. Step 3: Cross multiply
    445.41x = 614.73 × 258.84
  4. Step 4: Simplify right side
    445.41x = 159,116.71
  5. Step 5: Solve for x
    x = 159,116.71/445.41
  6. Step 6: Final answer
    x = 357.24

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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.