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Finding the Third Proportional to 145,960 and 314,429

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Solution

The third proportional to 145,960 and 314,429 is: 677,347.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,960 : 314,429 = 314,429 : x
  2. Step 2: Convert to fraction form
    145,960/314,429 = 314,429/x
  3. Step 3: Cross multiply
    145,960x = 314,429 × 314,429
  4. Step 4: Simplify right side
    145,960x = 98,865,596,041
  5. Step 5: Solve for x
    x = 98,865,596,041/145,960
  6. Step 6: Final answer
    x = 677,347.19

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.