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Finding the Fourth Proportional to 497.40, 673.65 and 497.40

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Solution

The fourth proportional to 497.40, 673.65 and 497.40 is: 673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.40 : 673.65 = 497.40 : x
  2. Step 2: Convert to fraction form
    497.40/673.65 = 497.40/x
  3. Step 3: Cross multiply
    497.40x = 673.65 × 497.40
  4. Step 4: Simplify right side
    497.40x = 335,073.51
  5. Step 5: Solve for x
    x = 335,073.51/497.40
  6. Step 6: Final answer
    x = 673.65

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.