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Finding the Fourth Proportional to 470.62, 704.82 and 307.84

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Solution

The fourth proportional to 470.62, 704.82 and 307.84 is: 461.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.62 : 704.82 = 307.84 : x
  2. Step 2: Convert to fraction form
    470.62/704.82 = 307.84/x
  3. Step 3: Cross multiply
    470.62x = 704.82 × 307.84
  4. Step 4: Simplify right side
    470.62x = 216,971.79
  5. Step 5: Solve for x
    x = 216,971.79/470.62
  6. Step 6: Final answer
    x = 461.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.