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Finding the Fourth Proportional to 355.66, 529.55 and 354.58

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Solution

The fourth proportional to 355.66, 529.55 and 354.58 is: 527.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.66 : 529.55 = 354.58 : x
  2. Step 2: Convert to fraction form
    355.66/529.55 = 354.58/x
  3. Step 3: Cross multiply
    355.66x = 529.55 × 354.58
  4. Step 4: Simplify right side
    355.66x = 187,767.84
  5. Step 5: Solve for x
    x = 187,767.84/355.66
  6. Step 6: Final answer
    x = 527.94

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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.