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Finding the Third Proportional to 418 and 572

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Solution

The third proportional to 418 and 572 is: 782.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    418 : 572 = 572 : x
  2. Step 2: Convert to fraction form
    418/572 = 572/x
  3. Step 3: Cross multiply
    418x = 572 × 572
  4. Step 4: Simplify right side
    418x = 327,184
  5. Step 5: Solve for x
    x = 327,184/418
  6. Step 6: Final answer
    x = 782.74

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.