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Finding the Fourth Proportional to 1,146.69, 1,720.10 and 366.76

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Solution

The fourth proportional to 1,146.69, 1,720.10 and 366.76 is: 550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146.69 : 1,720.10 = 366.76 : x
  2. Step 2: Convert to fraction form
    1,146.69/1,720.10 = 366.76/x
  3. Step 3: Cross multiply
    1,146.69x = 1,720.10 × 366.76
  4. Step 4: Simplify right side
    1,146.69x = 630,863.88
  5. Step 5: Solve for x
    x = 630,863.88/1,146.69
  6. Step 6: Final answer
    x = 550.16

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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.