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Finding the Fourth Proportional to 546.93, 819.78 and 303.93

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Solution

The fourth proportional to 546.93, 819.78 and 303.93 is: 455.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.93 : 819.78 = 303.93 : x
  2. Step 2: Convert to fraction form
    546.93/819.78 = 303.93/x
  3. Step 3: Cross multiply
    546.93x = 819.78 × 303.93
  4. Step 4: Simplify right side
    546.93x = 249,155.74
  5. Step 5: Solve for x
    x = 249,155.74/546.93
  6. Step 6: Final answer
    x = 455.55

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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.