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Finding the Fourth Proportional to 1,651.25, 2,476.85 and 497.00

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Solution

The fourth proportional to 1,651.25, 2,476.85 and 497.00 is: 745.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.25 : 2,476.85 = 497.00 : x
  2. Step 2: Convert to fraction form
    1,651.25/2,476.85 = 497.00/x
  3. Step 3: Cross multiply
    1,651.25x = 2,476.85 × 497.00
  4. Step 4: Simplify right side
    1,651.25x = 1,230,998.16
  5. Step 5: Solve for x
    x = 1,230,998.16/1,651.25
  6. Step 6: Final answer
    x = 745.49

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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.