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Finding the Third Proportional to 907.50 and 1,201.50

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Solution

The third proportional to 907.50 and 1,201.50 is: 1,590.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.50 : 1,201.50 = 1,201.50 : x
  2. Step 2: Convert to fraction form
    907.50/1,201.50 = 1,201.50/x
  3. Step 3: Cross multiply
    907.50x = 1,201.50 × 1,201.50
  4. Step 4: Simplify right side
    907.50x = 1,443,602.25
  5. Step 5: Solve for x
    x = 1,443,602.25/907.50
  6. Step 6: Final answer
    x = 1,590.75

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.