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Finding the Fourth Proportional to 380.77, 525.47 and 233.48

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Solution

The fourth proportional to 380.77, 525.47 and 233.48 is: 322.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.77 : 525.47 = 233.48 : x
  2. Step 2: Convert to fraction form
    380.77/525.47 = 233.48/x
  3. Step 3: Cross multiply
    380.77x = 525.47 × 233.48
  4. Step 4: Simplify right side
    380.77x = 122,687.76
  5. Step 5: Solve for x
    x = 122,687.76/380.77
  6. Step 6: Final answer
    x = 322.21

Related Problems

Find fourth proportional to 190.38, 262.73 and 116.74
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.