Home / 255,889.48-352,944.64-221,837.08

Finding the Fourth Proportional to 255,889.48, 352,944.64 and 221,837.08

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Solution

The fourth proportional to 255,889.48, 352,944.64 and 221,837.08 is: 305,976.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,889.48 : 352,944.64 = 221,837.08 : x
  2. Step 2: Convert to fraction form
    255,889.48/352,944.64 = 221,837.08/x
  3. Step 3: Cross multiply
    255,889.48x = 352,944.64 × 221,837.08
  4. Step 4: Simplify right side
    255,889.48x = 78,296,208,339.25
  5. Step 5: Solve for x
    x = 78,296,208,339.25/255,889.48
  6. Step 6: Final answer
    x = 305,976.66

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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.