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Finding the Fourth Proportional to 345,021, 517,531.50 and 95,703

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Solution

The fourth proportional to 345,021, 517,531.50 and 95,703 is: 143,554.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,021 : 517,531.50 = 95,703 : x
  2. Step 2: Convert to fraction form
    345,021/517,531.50 = 95,703/x
  3. Step 3: Cross multiply
    345,021x = 517,531.50 × 95,703
  4. Step 4: Simplify right side
    345,021x = 49,529,317,144.50
  5. Step 5: Solve for x
    x = 49,529,317,144.50/345,021
  6. Step 6: Final answer
    x = 143,554.50

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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.