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Finding the Fourth Proportional to 479.10, 718.41 and 262.50

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Solution

The fourth proportional to 479.10, 718.41 and 262.50 is: 393.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.10 : 718.41 = 262.50 : x
  2. Step 2: Convert to fraction form
    479.10/718.41 = 262.50/x
  3. Step 3: Cross multiply
    479.10x = 718.41 × 262.50
  4. Step 4: Simplify right side
    479.10x = 188,582.63
  5. Step 5: Solve for x
    x = 188,582.63/479.10
  6. Step 6: Final answer
    x = 393.62

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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.