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Finding the Fourth Proportional to 340.66, 470.10 and 242.83

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Solution

The fourth proportional to 340.66, 470.10 and 242.83 is: 335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.66 : 470.10 = 242.83 : x
  2. Step 2: Convert to fraction form
    340.66/470.10 = 242.83/x
  3. Step 3: Cross multiply
    340.66x = 470.10 × 242.83
  4. Step 4: Simplify right side
    340.66x = 114,154.38
  5. Step 5: Solve for x
    x = 114,154.38/340.66
  6. Step 6: Final answer
    x = 335.10

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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.