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Finding the Fourth Proportional to 364.86, 546.26 and 291.36

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Solution

The fourth proportional to 364.86, 546.26 and 291.36 is: 436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.86 : 546.26 = 291.36 : x
  2. Step 2: Convert to fraction form
    364.86/546.26 = 291.36/x
  3. Step 3: Cross multiply
    364.86x = 546.26 × 291.36
  4. Step 4: Simplify right side
    364.86x = 159,156.86
  5. Step 5: Solve for x
    x = 159,156.86/364.86
  6. Step 6: Final answer
    x = 436.21

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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.