Home / 210,830.85-290,944.17-115,336.44

Finding the Fourth Proportional to 210,830.85, 290,944.17 and 115,336.44

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Solution

The fourth proportional to 210,830.85, 290,944.17 and 115,336.44 is: 159,162.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,830.85 : 290,944.17 = 115,336.44 : x
  2. Step 2: Convert to fraction form
    210,830.85/290,944.17 = 115,336.44/x
  3. Step 3: Cross multiply
    210,830.85x = 290,944.17 × 115,336.44
  4. Step 4: Simplify right side
    210,830.85x = 33,556,464,806.55
  5. Step 5: Solve for x
    x = 33,556,464,806.55/210,830.85
  6. Step 6: Final answer
    x = 159,162.97

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1.5x scale

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.