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Finding the Third Proportional to 70,428 and 153,492

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Solution

The third proportional to 70,428 and 153,492 is: 334,523.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,428 : 153,492 = 153,492 : x
  2. Step 2: Convert to fraction form
    70,428/153,492 = 153,492/x
  3. Step 3: Cross multiply
    70,428x = 153,492 × 153,492
  4. Step 4: Simplify right side
    70,428x = 23,559,794,064
  5. Step 5: Solve for x
    x = 23,559,794,064/70,428
  6. Step 6: Final answer
    x = 334,523.12

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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.