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Finding the Third Proportional to 143,515.13 and 314,298

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Solution

The third proportional to 143,515.13 and 314,298 is: 688,312.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,515.13 : 314,298 = 314,298 : x
  2. Step 2: Convert to fraction form
    143,515.13/314,298 = 314,298/x
  3. Step 3: Cross multiply
    143,515.13x = 314,298 × 314,298
  4. Step 4: Simplify right side
    143,515.13x = 98,783,232,804
  5. Step 5: Solve for x
    x = 98,783,232,804/143,515.13
  6. Step 6: Final answer
    x = 688,312.35

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.