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Finding the Fourth Proportional to 604.73, 907.55 and 280.33

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Solution

The fourth proportional to 604.73, 907.55 and 280.33 is: 420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.73 : 907.55 = 280.33 : x
  2. Step 2: Convert to fraction form
    604.73/907.55 = 280.33/x
  3. Step 3: Cross multiply
    604.73x = 907.55 × 280.33
  4. Step 4: Simplify right side
    604.73x = 254,411.92
  5. Step 5: Solve for x
    x = 254,411.92/604.73
  6. Step 6: Final answer
    x = 420.70

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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.