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Finding the Fourth Proportional to 341.07, 470.04 and 278.70

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Solution

The fourth proportional to 341.07, 470.04 and 278.70 is: 384.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.07 : 470.04 = 278.70 : x
  2. Step 2: Convert to fraction form
    341.07/470.04 = 278.70/x
  3. Step 3: Cross multiply
    341.07x = 470.04 × 278.70
  4. Step 4: Simplify right side
    341.07x = 131,000.15
  5. Step 5: Solve for x
    x = 131,000.15/341.07
  6. Step 6: Final answer
    x = 384.09

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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.