Home / 307,946.43-421,879.58-296,433.06

Finding the Fourth Proportional to 307,946.43, 421,879.58 and 296,433.06

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Solution

The fourth proportional to 307,946.43, 421,879.58 and 296,433.06 is: 406,106.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,946.43 : 421,879.58 = 296,433.06 : x
  2. Step 2: Convert to fraction form
    307,946.43/421,879.58 = 296,433.06/x
  3. Step 3: Cross multiply
    307,946.43x = 421,879.58 × 296,433.06
  4. Step 4: Simplify right side
    307,946.43x = 125,059,055,592.00
  5. Step 5: Solve for x
    x = 125,059,055,592.00/307,946.43
  6. Step 6: Final answer
    x = 406,106.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.