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Finding the Fourth Proportional to 476.88, 714.51 and 339.27

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Solution

The fourth proportional to 476.88, 714.51 and 339.27 is: 508.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.88 : 714.51 = 339.27 : x
  2. Step 2: Convert to fraction form
    476.88/714.51 = 339.27/x
  3. Step 3: Cross multiply
    476.88x = 714.51 × 339.27
  4. Step 4: Simplify right side
    476.88x = 242,411.81
  5. Step 5: Solve for x
    x = 242,411.81/476.88
  6. Step 6: Final answer
    x = 508.33

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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.