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Finding the Fourth Proportional to 382.98, 529.04 and 368.76

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Solution

The fourth proportional to 382.98, 529.04 and 368.76 is: 509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.98 : 529.04 = 368.76 : x
  2. Step 2: Convert to fraction form
    382.98/529.04 = 368.76/x
  3. Step 3: Cross multiply
    382.98x = 529.04 × 368.76
  4. Step 4: Simplify right side
    382.98x = 195,087.07
  5. Step 5: Solve for x
    x = 195,087.07/382.98
  6. Step 6: Final answer
    x = 509.40

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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.