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Finding the Fourth Proportional to 656.70, 906.29 and 377.03

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Solution

The fourth proportional to 656.70, 906.29 and 377.03 is: 520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.70 : 906.29 = 377.03 : x
  2. Step 2: Convert to fraction form
    656.70/906.29 = 377.03/x
  3. Step 3: Cross multiply
    656.70x = 906.29 × 377.03
  4. Step 4: Simplify right side
    656.70x = 341,693.52
  5. Step 5: Solve for x
    x = 341,693.52/656.70
  6. Step 6: Final answer
    x = 520.32

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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.