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Finding the Fourth Proportional to 470.28, 650.04 and 340.20

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Solution

The fourth proportional to 470.28, 650.04 and 340.20 is: 470.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.28 : 650.04 = 340.20 : x
  2. Step 2: Convert to fraction form
    470.28/650.04 = 340.20/x
  3. Step 3: Cross multiply
    470.28x = 650.04 × 340.20
  4. Step 4: Simplify right side
    470.28x = 221,143.61
  5. Step 5: Solve for x
    x = 221,143.61/470.28
  6. Step 6: Final answer
    x = 470.24

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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.