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Finding the Fourth Proportional to 670.59, 925.41 and 375.87

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Solution

The fourth proportional to 670.59, 925.41 and 375.87 is: 518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.59 : 925.41 = 375.87 : x
  2. Step 2: Convert to fraction form
    670.59/925.41 = 375.87/x
  3. Step 3: Cross multiply
    670.59x = 925.41 × 375.87
  4. Step 4: Simplify right side
    670.59x = 347,833.86
  5. Step 5: Solve for x
    x = 347,833.86/670.59
  6. Step 6: Final answer
    x = 518.70

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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.