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Finding the Fourth Proportional to 303,970.50, 419,501.01 and 168,001.53

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Solution

The fourth proportional to 303,970.50, 419,501.01 and 168,001.53 is: 231,854.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,970.50 : 419,501.01 = 168,001.53 : x
  2. Step 2: Convert to fraction form
    303,970.50/419,501.01 = 168,001.53/x
  3. Step 3: Cross multiply
    303,970.50x = 419,501.01 × 168,001.53
  4. Step 4: Simplify right side
    303,970.50x = 70,476,811,516.55
  5. Step 5: Solve for x
    x = 70,476,811,516.55/303,970.50
  6. Step 6: Final answer
    x = 231,854.12

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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.