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Finding the Fourth Proportional to 511.90, 706.43 and 334.98

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Solution

The fourth proportional to 511.90, 706.43 and 334.98 is: 462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.90 : 706.43 = 334.98 : x
  2. Step 2: Convert to fraction form
    511.90/706.43 = 334.98/x
  3. Step 3: Cross multiply
    511.90x = 706.43 × 334.98
  4. Step 4: Simplify right side
    511.90x = 236,639.92
  5. Step 5: Solve for x
    x = 236,639.92/511.90
  6. Step 6: Final answer
    x = 462.28

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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.