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Finding the Fourth Proportional to 354.50, 529.08 and 325.10

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Solution

The fourth proportional to 354.50, 529.08 and 325.10 is: 485.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.50 : 529.08 = 325.10 : x
  2. Step 2: Convert to fraction form
    354.50/529.08 = 325.10/x
  3. Step 3: Cross multiply
    354.50x = 529.08 × 325.10
  4. Step 4: Simplify right side
    354.50x = 172,001.26
  5. Step 5: Solve for x
    x = 172,001.26/354.50
  6. Step 6: Final answer
    x = 485.20

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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.