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Finding the Fourth Proportional to 629.77, 945.38 and 373.81

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Solution

The fourth proportional to 629.77, 945.38 and 373.81 is: 561.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.77 : 945.38 = 373.81 : x
  2. Step 2: Convert to fraction form
    629.77/945.38 = 373.81/x
  3. Step 3: Cross multiply
    629.77x = 945.38 × 373.81
  4. Step 4: Simplify right side
    629.77x = 353,390.63
  5. Step 5: Solve for x
    x = 353,390.63/629.77
  6. Step 6: Final answer
    x = 561.14

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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.