Home / 351,222.90-526,511.41-126,528.39

Finding the Fourth Proportional to 351,222.90, 526,511.41 and 126,528.39

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Solution

The fourth proportional to 351,222.90, 526,511.41 and 126,528.39 is: 189,676.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,222.90 : 526,511.41 = 126,528.39 : x
  2. Step 2: Convert to fraction form
    351,222.90/526,511.41 = 126,528.39/x
  3. Step 3: Cross multiply
    351,222.90x = 526,511.41 × 126,528.39
  4. Step 4: Simplify right side
    351,222.90x = 66,618,641,023.93
  5. Step 5: Solve for x
    x = 66,618,641,023.93/351,222.90
  6. Step 6: Final answer
    x = 189,676.25

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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.