Home / 312,158.56-430,779.97-168,918.60

Finding the Fourth Proportional to 312,158.56, 430,779.97 and 168,918.60

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Solution

The fourth proportional to 312,158.56, 430,779.97 and 168,918.60 is: 233,108.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,158.56 : 430,779.97 = 168,918.60 : x
  2. Step 2: Convert to fraction form
    312,158.56/430,779.97 = 168,918.60/x
  3. Step 3: Cross multiply
    312,158.56x = 430,779.97 × 168,918.60
  4. Step 4: Simplify right side
    312,158.56x = 72,766,749,440.44
  5. Step 5: Solve for x
    x = 72,766,749,440.44/312,158.56
  6. Step 6: Final answer
    x = 233,108.29

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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.