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Finding the Fourth Proportional to 651.70, 899.25 and 371.86

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Solution

The fourth proportional to 651.70, 899.25 and 371.86 is: 513.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.70 : 899.25 = 371.86 : x
  2. Step 2: Convert to fraction form
    651.70/899.25 = 371.86/x
  3. Step 3: Cross multiply
    651.70x = 899.25 × 371.86
  4. Step 4: Simplify right side
    651.70x = 334,395.11
  5. Step 5: Solve for x
    x = 334,395.11/651.70
  6. Step 6: Final answer
    x = 513.11

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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.