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Finding the Fourth Proportional to 851.00, 1,174.43 and 472.93

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Solution

The fourth proportional to 851.00, 1,174.43 and 472.93 is: 652.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    851.00 : 1,174.43 = 472.93 : x
  2. Step 2: Convert to fraction form
    851.00/1,174.43 = 472.93/x
  3. Step 3: Cross multiply
    851.00x = 1,174.43 × 472.93
  4. Step 4: Simplify right side
    851.00x = 555,424.73
  5. Step 5: Solve for x
    x = 555,424.73/851.00
  6. Step 6: Final answer
    x = 652.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.