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Finding the Fourth Proportional to 662.51, 993.76 and 370.45

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Solution

The fourth proportional to 662.51, 993.76 and 370.45 is: 555.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.51 : 993.76 = 370.45 : x
  2. Step 2: Convert to fraction form
    662.51/993.76 = 370.45/x
  3. Step 3: Cross multiply
    662.51x = 993.76 × 370.45
  4. Step 4: Simplify right side
    662.51x = 368,134.98
  5. Step 5: Solve for x
    x = 368,134.98/662.51
  6. Step 6: Final answer
    x = 555.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.