Home / 312,126.36-430,731.30-168,883.26

Finding the Fourth Proportional to 312,126.36, 430,731.30 and 168,883.26

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Solution

The fourth proportional to 312,126.36, 430,731.30 and 168,883.26 is: 233,057.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,126.36 : 430,731.30 = 168,883.26 : x
  2. Step 2: Convert to fraction form
    312,126.36/430,731.30 = 168,883.26/x
  3. Step 3: Cross multiply
    312,126.36x = 430,731.30 × 168,883.26
  4. Step 4: Simplify right side
    312,126.36x = 72,743,306,128.04
  5. Step 5: Solve for x
    x = 72,743,306,128.04/312,126.36
  6. Step 6: Final answer
    x = 233,057.23

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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.