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Finding the Fourth Proportional to 359.74, 497.73 and 346.30

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Solution

The fourth proportional to 359.74, 497.73 and 346.30 is: 479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.74 : 497.73 = 346.30 : x
  2. Step 2: Convert to fraction form
    359.74/497.73 = 346.30/x
  3. Step 3: Cross multiply
    359.74x = 497.73 × 346.30
  4. Step 4: Simplify right side
    359.74x = 172,363.90
  5. Step 5: Solve for x
    x = 172,363.90/359.74
  6. Step 6: Final answer
    x = 479.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.