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Finding the Third Proportional to 134,430 and 293,315

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Solution

The third proportional to 134,430 and 293,315 is: 639,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,430 : 293,315 = 293,315 : x
  2. Step 2: Convert to fraction form
    134,430/293,315 = 293,315/x
  3. Step 3: Cross multiply
    134,430x = 293,315 × 293,315
  4. Step 4: Simplify right side
    134,430x = 86,033,689,225
  5. Step 5: Solve for x
    x = 86,033,689,225/134,430
  6. Step 6: Final answer
    x = 639,988.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.