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Finding the Third Proportional to 145,575 and 318,306

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Solution

The third proportional to 145,575 and 318,306 is: 695,989.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,575 : 318,306 = 318,306 : x
  2. Step 2: Convert to fraction form
    145,575/318,306 = 318,306/x
  3. Step 3: Cross multiply
    145,575x = 318,306 × 318,306
  4. Step 4: Simplify right side
    145,575x = 101,318,709,636
  5. Step 5: Solve for x
    x = 101,318,709,636/145,575
  6. Step 6: Final answer
    x = 695,989.76

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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.