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Finding the Third Proportional to 315,213 and 473,143.50

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Solution

The third proportional to 315,213 and 473,143.50 is: 710,201.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,213 : 473,143.50 = 473,143.50 : x
  2. Step 2: Convert to fraction form
    315,213/473,143.50 = 473,143.50/x
  3. Step 3: Cross multiply
    315,213x = 473,143.50 × 473,143.50
  4. Step 4: Simplify right side
    315,213x = 223,864,771,592.25
  5. Step 5: Solve for x
    x = 223,864,771,592.25/315,213
  6. Step 6: Final answer
    x = 710,201.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.