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Finding the Third Proportional to 543.38 and 917.06

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Solution

The third proportional to 543.38 and 917.06 is: 1,547.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.38 : 917.06 = 917.06 : x
  2. Step 2: Convert to fraction form
    543.38/917.06 = 917.06/x
  3. Step 3: Cross multiply
    543.38x = 917.06 × 917.06
  4. Step 4: Simplify right side
    543.38x = 841,003.63
  5. Step 5: Solve for x
    x = 841,003.63/543.38
  6. Step 6: Final answer
    x = 1,547.74

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Why These Related Problems?

These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.