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Finding the Fourth Proportional to 359.02, 535.69 and 348.49

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Solution

The fourth proportional to 359.02, 535.69 and 348.49 is: 519.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.02 : 535.69 = 348.49 : x
  2. Step 2: Convert to fraction form
    359.02/535.69 = 348.49/x
  3. Step 3: Cross multiply
    359.02x = 535.69 × 348.49
  4. Step 4: Simplify right side
    359.02x = 186,682.61
  5. Step 5: Solve for x
    x = 186,682.61/359.02
  6. Step 6: Final answer
    x = 519.98

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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.