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Finding the Fourth Proportional to 340.95, 470.69 and 210.03

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Solution

The fourth proportional to 340.95, 470.69 and 210.03 is: 289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.95 : 470.69 = 210.03 : x
  2. Step 2: Convert to fraction form
    340.95/470.69 = 210.03/x
  3. Step 3: Cross multiply
    340.95x = 470.69 × 210.03
  4. Step 4: Simplify right side
    340.95x = 98,857.97
  5. Step 5: Solve for x
    x = 98,857.97/340.95
  6. Step 6: Final answer
    x = 289.95

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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.