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Finding the Fourth Proportional to 479.15, 716.90 and 296.09

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Solution

The fourth proportional to 479.15, 716.90 and 296.09 is: 443.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.15 : 716.90 = 296.09 : x
  2. Step 2: Convert to fraction form
    479.15/716.90 = 296.09/x
  3. Step 3: Cross multiply
    479.15x = 716.90 × 296.09
  4. Step 4: Simplify right side
    479.15x = 212,263.31
  5. Step 5: Solve for x
    x = 212,263.31/479.15
  6. Step 6: Final answer
    x = 443.00

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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.