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Finding the Fourth Proportional to 340.28, 466.93 and 309.09

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Solution

The fourth proportional to 340.28, 466.93 and 309.09 is: 424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.28 : 466.93 = 309.09 : x
  2. Step 2: Convert to fraction form
    340.28/466.93 = 309.09/x
  3. Step 3: Cross multiply
    340.28x = 466.93 × 309.09
  4. Step 4: Simplify right side
    340.28x = 144,325.53
  5. Step 5: Solve for x
    x = 144,325.53/340.28
  6. Step 6: Final answer
    x = 424.14

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.