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Finding the Fourth Proportional to 479.50, 662.02 and 368.76

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Solution

The fourth proportional to 479.50, 662.02 and 368.76 is: 509.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.50 : 662.02 = 368.76 : x
  2. Step 2: Convert to fraction form
    479.50/662.02 = 368.76/x
  3. Step 3: Cross multiply
    479.50x = 662.02 × 368.76
  4. Step 4: Simplify right side
    479.50x = 244,126.50
  5. Step 5: Solve for x
    x = 244,126.50/479.50
  6. Step 6: Final answer
    x = 509.13

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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.