Home / 196,314.24-270,590.16-138,879.36

Finding the Fourth Proportional to 196,314.24, 270,590.16 and 138,879.36

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Solution

The fourth proportional to 196,314.24, 270,590.16 and 138,879.36 is: 191,424.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,314.24 : 270,590.16 = 138,879.36 : x
  2. Step 2: Convert to fraction form
    196,314.24/270,590.16 = 138,879.36/x
  3. Step 3: Cross multiply
    196,314.24x = 270,590.16 × 138,879.36
  4. Step 4: Simplify right side
    196,314.24x = 37,579,388,243.10
  5. Step 5: Solve for x
    x = 37,579,388,243.10/196,314.24
  6. Step 6: Final answer
    x = 191,424.67

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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.