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Finding the Fourth Proportional to 354.03, 530.95 and 158.92

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Solution

The fourth proportional to 354.03, 530.95 and 158.92 is: 238.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.03 : 530.95 = 158.92 : x
  2. Step 2: Convert to fraction form
    354.03/530.95 = 158.92/x
  3. Step 3: Cross multiply
    354.03x = 530.95 × 158.92
  4. Step 4: Simplify right side
    354.03x = 84,378.86
  5. Step 5: Solve for x
    x = 84,378.86/354.03
  6. Step 6: Final answer
    x = 238.34

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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.