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Finding the Fourth Proportional to 543,683.50, 750,283.23 and 305,219.50

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Solution

The fourth proportional to 543,683.50, 750,283.23 and 305,219.50 is: 421,202.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,683.50 : 750,283.23 = 305,219.50 : x
  2. Step 2: Convert to fraction form
    543,683.50/750,283.23 = 305,219.50/x
  3. Step 3: Cross multiply
    543,683.50x = 750,283.23 × 305,219.50
  4. Step 4: Simplify right side
    543,683.50x = 229,001,072,318.99
  5. Step 5: Solve for x
    x = 229,001,072,318.99/543,683.50
  6. Step 6: Final answer
    x = 421,202.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.