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Finding the Third Proportional to 98,415 and 144,342

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Solution

The third proportional to 98,415 and 144,342 is: 211,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,415 : 144,342 = 144,342 : x
  2. Step 2: Convert to fraction form
    98,415/144,342 = 144,342/x
  3. Step 3: Cross multiply
    98,415x = 144,342 × 144,342
  4. Step 4: Simplify right side
    98,415x = 20,834,612,964
  5. Step 5: Solve for x
    x = 20,834,612,964/98,415
  6. Step 6: Final answer
    x = 211,701.60

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.