Home / 1,050.68-1,575.76-320.20

Finding the Fourth Proportional to 1,050.68, 1,575.76 and 320.20

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Solution

The fourth proportional to 1,050.68, 1,575.76 and 320.20 is: 480.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.68 : 1,575.76 = 320.20 : x
  2. Step 2: Convert to fraction form
    1,050.68/1,575.76 = 320.20/x
  3. Step 3: Cross multiply
    1,050.68x = 1,575.76 × 320.20
  4. Step 4: Simplify right side
    1,050.68x = 504,558.35
  5. Step 5: Solve for x
    x = 504,558.35/1,050.68
  6. Step 6: Final answer
    x = 480.22

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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.