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Finding the Fourth Proportional to 673.10, 943.30 and 673.10

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Solution

The fourth proportional to 673.10, 943.30 and 673.10 is: 943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.10 : 943.30 = 673.10 : x
  2. Step 2: Convert to fraction form
    673.10/943.30 = 673.10/x
  3. Step 3: Cross multiply
    673.10x = 943.30 × 673.10
  4. Step 4: Simplify right side
    673.10x = 634,935.23
  5. Step 5: Solve for x
    x = 634,935.23/673.10
  6. Step 6: Final answer
    x = 943.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.