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Finding the Fourth Proportional to 350.83, 528.53 and 320.76

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Solution

The fourth proportional to 350.83, 528.53 and 320.76 is: 483.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.83 : 528.53 = 320.76 : x
  2. Step 2: Convert to fraction form
    350.83/528.53 = 320.76/x
  3. Step 3: Cross multiply
    350.83x = 528.53 × 320.76
  4. Step 4: Simplify right side
    350.83x = 169,529.68
  5. Step 5: Solve for x
    x = 169,529.68/350.83
  6. Step 6: Final answer
    x = 483.22

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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.