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Finding the Third Proportional to 66,373.88 and 143,312.63

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Solution

The third proportional to 66,373.88 and 143,312.63 is: 309,436.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,373.88 : 143,312.63 = 143,312.63 : x
  2. Step 2: Convert to fraction form
    66,373.88/143,312.63 = 143,312.63/x
  3. Step 3: Cross multiply
    66,373.88x = 143,312.63 × 143,312.63
  4. Step 4: Simplify right side
    66,373.88x = 20,538,508,484.39
  5. Step 5: Solve for x
    x = 20,538,508,484.39/66,373.88
  6. Step 6: Final answer
    x = 309,436.63

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.