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Finding the Fourth Proportional to 479.32, 718.78 and 358.36

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Solution

The fourth proportional to 479.32, 718.78 and 358.36 is: 537.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.32 : 718.78 = 358.36 : x
  2. Step 2: Convert to fraction form
    479.32/718.78 = 358.36/x
  3. Step 3: Cross multiply
    479.32x = 718.78 × 358.36
  4. Step 4: Simplify right side
    479.32x = 257,582.00
  5. Step 5: Solve for x
    x = 257,582.00/479.32
  6. Step 6: Final answer
    x = 537.39

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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.