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Finding the Fourth Proportional to 375.13, 559.49 and 355.69

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Solution

The fourth proportional to 375.13, 559.49 and 355.69 is: 530.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.13 : 559.49 = 355.69 : x
  2. Step 2: Convert to fraction form
    375.13/559.49 = 355.69/x
  3. Step 3: Cross multiply
    375.13x = 559.49 × 355.69
  4. Step 4: Simplify right side
    375.13x = 199,005.00
  5. Step 5: Solve for x
    x = 199,005.00/375.13
  6. Step 6: Final answer
    x = 530.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.