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Finding the Fourth Proportional to 341.46, 509.56 and 305

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Solution

The fourth proportional to 341.46, 509.56 and 305 is: 455.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.46 : 509.56 = 305 : x
  2. Step 2: Convert to fraction form
    341.46/509.56 = 305/x
  3. Step 3: Cross multiply
    341.46x = 509.56 × 305
  4. Step 4: Simplify right side
    341.46x = 155,415.80
  5. Step 5: Solve for x
    x = 155,415.80/341.46
  6. Step 6: Final answer
    x = 455.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.