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Finding the Fourth Proportional to 364.58, 546.76 and 210.48

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Solution

The fourth proportional to 364.58, 546.76 and 210.48 is: 315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.58 : 546.76 = 210.48 : x
  2. Step 2: Convert to fraction form
    364.58/546.76 = 210.48/x
  3. Step 3: Cross multiply
    364.58x = 546.76 × 210.48
  4. Step 4: Simplify right side
    364.58x = 115,082.04
  5. Step 5: Solve for x
    x = 115,082.04/364.58
  6. Step 6: Final answer
    x = 315.66

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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.