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Finding the Fourth Proportional to 340,806.69, 511,211.25 and 104,148.39

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Solution

The fourth proportional to 340,806.69, 511,211.25 and 104,148.39 is: 156,222.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,806.69 : 511,211.25 = 104,148.39 : x
  2. Step 2: Convert to fraction form
    340,806.69/511,211.25 = 104,148.39/x
  3. Step 3: Cross multiply
    340,806.69x = 511,211.25 × 104,148.39
  4. Step 4: Simplify right side
    340,806.69x = 53,241,828,637.39
  5. Step 5: Solve for x
    x = 53,241,828,637.39/340,806.69
  6. Step 6: Final answer
    x = 156,222.96

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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.