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Finding the Fourth Proportional to 359.22, 536.03 and 345.18

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Solution

The fourth proportional to 359.22, 536.03 and 345.18 is: 515.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.22 : 536.03 = 345.18 : x
  2. Step 2: Convert to fraction form
    359.22/536.03 = 345.18/x
  3. Step 3: Cross multiply
    359.22x = 536.03 × 345.18
  4. Step 4: Simplify right side
    359.22x = 185,025.11
  5. Step 5: Solve for x
    x = 185,025.11/359.22
  6. Step 6: Final answer
    x = 515.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.