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Finding the Third Proportional to 907.13 and 985.88

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Solution

The third proportional to 907.13 and 985.88 is: 1,071.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.13 : 985.88 = 985.88 : x
  2. Step 2: Convert to fraction form
    907.13/985.88 = 985.88/x
  3. Step 3: Cross multiply
    907.13x = 985.88 × 985.88
  4. Step 4: Simplify right side
    907.13x = 971,949.52
  5. Step 5: Solve for x
    x = 971,949.52/907.13
  6. Step 6: Final answer
    x = 1,071.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.