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Finding the Fourth Proportional to 355.07, 530.25 and 351.26

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Solution

The fourth proportional to 355.07, 530.25 and 351.26 is: 524.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.07 : 530.25 = 351.26 : x
  2. Step 2: Convert to fraction form
    355.07/530.25 = 351.26/x
  3. Step 3: Cross multiply
    355.07x = 530.25 × 351.26
  4. Step 4: Simplify right side
    355.07x = 186,253.63
  5. Step 5: Solve for x
    x = 186,253.63/355.07
  6. Step 6: Final answer
    x = 524.55

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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.