Home / 643,576.07-965,369.91-163,804.39

Finding the Fourth Proportional to 643,576.07, 965,369.91 and 163,804.39

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Solution

The fourth proportional to 643,576.07, 965,369.91 and 163,804.39 is: 245,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,576.07 : 965,369.91 = 163,804.39 : x
  2. Step 2: Convert to fraction form
    643,576.07/965,369.91 = 163,804.39/x
  3. Step 3: Cross multiply
    643,576.07x = 965,369.91 × 163,804.39
  4. Step 4: Simplify right side
    643,576.07x = 158,131,831,088.29
  5. Step 5: Solve for x
    x = 158,131,831,088.29/643,576.07
  6. Step 6: Final answer
    x = 245,708.06

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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.