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Finding the Fourth Proportional to 477.83, 714.93 and 272.50

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Solution

The fourth proportional to 477.83, 714.93 and 272.50 is: 407.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.83 : 714.93 = 272.50 : x
  2. Step 2: Convert to fraction form
    477.83/714.93 = 272.50/x
  3. Step 3: Cross multiply
    477.83x = 714.93 × 272.50
  4. Step 4: Simplify right side
    477.83x = 194,815.62
  5. Step 5: Solve for x
    x = 194,815.62/477.83
  6. Step 6: Final answer
    x = 407.71

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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.