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Finding the Third Proportional to 153,354 and 314,358

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Solution

The third proportional to 153,354 and 314,358 is: 644,397.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,354 : 314,358 = 314,358 : x
  2. Step 2: Convert to fraction form
    153,354/314,358 = 314,358/x
  3. Step 3: Cross multiply
    153,354x = 314,358 × 314,358
  4. Step 4: Simplify right side
    153,354x = 98,820,952,164
  5. Step 5: Solve for x
    x = 98,820,952,164/153,354
  6. Step 6: Final answer
    x = 644,397.62

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.