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Finding the Fourth Proportional to 359.21, 540.18 and 304.53

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Solution

The fourth proportional to 359.21, 540.18 and 304.53 is: 457.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.21 : 540.18 = 304.53 : x
  2. Step 2: Convert to fraction form
    359.21/540.18 = 304.53/x
  3. Step 3: Cross multiply
    359.21x = 540.18 × 304.53
  4. Step 4: Simplify right side
    359.21x = 164,501.02
  5. Step 5: Solve for x
    x = 164,501.02/359.21
  6. Step 6: Final answer
    x = 457.96

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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.