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Finding the Fourth Proportional to 767.06, 1,150.74 and 355.93

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Solution

The fourth proportional to 767.06, 1,150.74 and 355.93 is: 533.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    767.06 : 1,150.74 = 355.93 : x
  2. Step 2: Convert to fraction form
    767.06/1,150.74 = 355.93/x
  3. Step 3: Cross multiply
    767.06x = 1,150.74 × 355.93
  4. Step 4: Simplify right side
    767.06x = 409,582.89
  5. Step 5: Solve for x
    x = 409,582.89/767.06
  6. Step 6: Final answer
    x = 533.96

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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.