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Finding the Fourth Proportional to 355.14, 530.35 and 351.33

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Solution

The fourth proportional to 355.14, 530.35 and 351.33 is: 524.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.14 : 530.35 = 351.33 : x
  2. Step 2: Convert to fraction form
    355.14/530.35 = 351.33/x
  3. Step 3: Cross multiply
    355.14x = 530.35 × 351.33
  4. Step 4: Simplify right side
    355.14x = 186,327.87
  5. Step 5: Solve for x
    x = 186,327.87/355.14
  6. Step 6: Final answer
    x = 524.66

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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.