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Finding the Fourth Proportional to 356.52, 530.97 and 354.45

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Solution

The fourth proportional to 356.52, 530.97 and 354.45 is: 527.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.52 : 530.97 = 354.45 : x
  2. Step 2: Convert to fraction form
    356.52/530.97 = 354.45/x
  3. Step 3: Cross multiply
    356.52x = 530.97 × 354.45
  4. Step 4: Simplify right side
    356.52x = 188,202.32
  5. Step 5: Solve for x
    x = 188,202.32/356.52
  6. Step 6: Final answer
    x = 527.89

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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.