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Finding the Fourth Proportional to 359.64, 536.10 and 347.64

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Solution

The fourth proportional to 359.64, 536.10 and 347.64 is: 518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.64 : 536.10 = 347.64 : x
  2. Step 2: Convert to fraction form
    359.64/536.10 = 347.64/x
  3. Step 3: Cross multiply
    359.64x = 536.10 × 347.64
  4. Step 4: Simplify right side
    359.64x = 186,369.80
  5. Step 5: Solve for x
    x = 186,369.80/359.64
  6. Step 6: Final answer
    x = 518.21

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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.