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Finding the Fourth Proportional to 375.88, 515.70 and 357.52

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Solution

The fourth proportional to 375.88, 515.70 and 357.52 is: 490.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.88 : 515.70 = 357.52 : x
  2. Step 2: Convert to fraction form
    375.88/515.70 = 357.52/x
  3. Step 3: Cross multiply
    375.88x = 515.70 × 357.52
  4. Step 4: Simplify right side
    375.88x = 184,373.06
  5. Step 5: Solve for x
    x = 184,373.06/375.88
  6. Step 6: Final answer
    x = 490.51

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.