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Finding the Fourth Proportional to 837.02, 1,155.03 and 463.98

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Solution

The fourth proportional to 837.02, 1,155.03 and 463.98 is: 640.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.02 : 1,155.03 = 463.98 : x
  2. Step 2: Convert to fraction form
    837.02/1,155.03 = 463.98/x
  3. Step 3: Cross multiply
    837.02x = 1,155.03 × 463.98
  4. Step 4: Simplify right side
    837.02x = 535,906.20
  5. Step 5: Solve for x
    x = 535,906.20/837.02
  6. Step 6: Final answer
    x = 640.26

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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.