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Finding the Fourth Proportional to 446.99, 616.95 and 316.04

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Solution

The fourth proportional to 446.99, 616.95 and 316.04 is: 436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.99 : 616.95 = 316.04 : x
  2. Step 2: Convert to fraction form
    446.99/616.95 = 316.04/x
  3. Step 3: Cross multiply
    446.99x = 616.95 × 316.04
  4. Step 4: Simplify right side
    446.99x = 194,977.79
  5. Step 5: Solve for x
    x = 194,977.79/446.99
  6. Step 6: Final answer
    x = 436.21

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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.