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Finding the Fourth Proportional to 730.46, 1,095.96 and 340.68

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Solution

The fourth proportional to 730.46, 1,095.96 and 340.68 is: 511.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.46 : 1,095.96 = 340.68 : x
  2. Step 2: Convert to fraction form
    730.46/1,095.96 = 340.68/x
  3. Step 3: Cross multiply
    730.46x = 1,095.96 × 340.68
  4. Step 4: Simplify right side
    730.46x = 373,371.65
  5. Step 5: Solve for x
    x = 373,371.65/730.46
  6. Step 6: Final answer
    x = 511.15

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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.