Home / 315,812.27-435,865.38-201,054.23

Finding the Fourth Proportional to 315,812.27, 435,865.38 and 201,054.23

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Solution

The fourth proportional to 315,812.27, 435,865.38 and 201,054.23 is: 277,483.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,812.27 : 435,865.38 = 201,054.23 : x
  2. Step 2: Convert to fraction form
    315,812.27/435,865.38 = 201,054.23/x
  3. Step 3: Cross multiply
    315,812.27x = 435,865.38 × 201,054.23
  4. Step 4: Simplify right side
    315,812.27x = 87,632,576,400.37
  5. Step 5: Solve for x
    x = 87,632,576,400.37/315,812.27
  6. Step 6: Final answer
    x = 277,483.13

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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.