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Finding the Fourth Proportional to 303,870.51, 419,339.70 and 167,913.83

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Solution

The fourth proportional to 303,870.51, 419,339.70 and 167,913.83 is: 231,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,870.51 : 419,339.70 = 167,913.83 : x
  2. Step 2: Convert to fraction form
    303,870.51/419,339.70 = 167,913.83/x
  3. Step 3: Cross multiply
    303,870.51x = 419,339.70 × 167,913.83
  4. Step 4: Simplify right side
    303,870.51x = 70,412,936,146.40
  5. Step 5: Solve for x
    x = 70,412,936,146.40/303,870.51
  6. Step 6: Final answer
    x = 231,720.20

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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.