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Finding the Third Proportional to 139,703.81 and 303,715.13

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Solution

The third proportional to 139,703.81 and 303,715.13 is: 660,274.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,703.81 : 303,715.13 = 303,715.13 : x
  2. Step 2: Convert to fraction form
    139,703.81/303,715.13 = 303,715.13/x
  3. Step 3: Cross multiply
    139,703.81x = 303,715.13 × 303,715.13
  4. Step 4: Simplify right side
    139,703.81x = 92,242,877,153.77
  5. Step 5: Solve for x
    x = 92,242,877,153.77/139,703.81
  6. Step 6: Final answer
    x = 660,274.59

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.