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Finding the Fourth Proportional to 364.51, 546.75 and 90.59

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Solution

The fourth proportional to 364.51, 546.75 and 90.59 is: 135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.51 : 546.75 = 90.59 : x
  2. Step 2: Convert to fraction form
    364.51/546.75 = 90.59/x
  3. Step 3: Cross multiply
    364.51x = 546.75 × 90.59
  4. Step 4: Simplify right side
    364.51x = 49,530.08
  5. Step 5: Solve for x
    x = 49,530.08/364.51
  6. Step 6: Final answer
    x = 135.88

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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.