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Finding the Fourth Proportional to 354.58, 527.90 and 352.87

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Solution

The fourth proportional to 354.58, 527.90 and 352.87 is: 525.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.58 : 527.90 = 352.87 : x
  2. Step 2: Convert to fraction form
    354.58/527.90 = 352.87/x
  3. Step 3: Cross multiply
    354.58x = 527.90 × 352.87
  4. Step 4: Simplify right side
    354.58x = 186,280.07
  5. Step 5: Solve for x
    x = 186,280.07/354.58
  6. Step 6: Final answer
    x = 525.35

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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.