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Finding the Fourth Proportional to 354.54, 530.59 and 346.44

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Solution

The fourth proportional to 354.54, 530.59 and 346.44 is: 518.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.54 : 530.59 = 346.44 : x
  2. Step 2: Convert to fraction form
    354.54/530.59 = 346.44/x
  3. Step 3: Cross multiply
    354.54x = 530.59 × 346.44
  4. Step 4: Simplify right side
    354.54x = 183,817.60
  5. Step 5: Solve for x
    x = 183,817.60/354.54
  6. Step 6: Final answer
    x = 518.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.