Home / 312,239.36-430,900.74-191,357.28

Finding the Fourth Proportional to 312,239.36, 430,900.74 and 191,357.28

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Solution

The fourth proportional to 312,239.36, 430,900.74 and 191,357.28 is: 264,079.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,239.36 : 430,900.74 = 191,357.28 : x
  2. Step 2: Convert to fraction form
    312,239.36/430,900.74 = 191,357.28/x
  3. Step 3: Cross multiply
    312,239.36x = 430,900.74 × 191,357.28
  4. Step 4: Simplify right side
    312,239.36x = 82,455,993,556.39
  5. Step 5: Solve for x
    x = 82,455,993,556.39/312,239.36
  6. Step 6: Final answer
    x = 264,079.44

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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.