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Finding the Fourth Proportional to 355.67, 530.75 and 352.97

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Solution

The fourth proportional to 355.67, 530.75 and 352.97 is: 526.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.67 : 530.75 = 352.97 : x
  2. Step 2: Convert to fraction form
    355.67/530.75 = 352.97/x
  3. Step 3: Cross multiply
    355.67x = 530.75 × 352.97
  4. Step 4: Simplify right side
    355.67x = 187,338.83
  5. Step 5: Solve for x
    x = 187,338.83/355.67
  6. Step 6: Final answer
    x = 526.72

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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.