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Finding the Fourth Proportional to 351.89, 530.22 and 292.36

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Solution

The fourth proportional to 351.89, 530.22 and 292.36 is: 440.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.89 : 530.22 = 292.36 : x
  2. Step 2: Convert to fraction form
    351.89/530.22 = 292.36/x
  3. Step 3: Cross multiply
    351.89x = 530.22 × 292.36
  4. Step 4: Simplify right side
    351.89x = 155,011.01
  5. Step 5: Solve for x
    x = 155,011.01/351.89
  6. Step 6: Final answer
    x = 440.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.