Home / 291,078.20-401,659.34-163,751.06

Finding the Fourth Proportional to 291,078.20, 401,659.34 and 163,751.06

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Solution

The fourth proportional to 291,078.20, 401,659.34 and 163,751.06 is: 225,960.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,078.20 : 401,659.34 = 163,751.06 : x
  2. Step 2: Convert to fraction form
    291,078.20/401,659.34 = 163,751.06/x
  3. Step 3: Cross multiply
    291,078.20x = 401,659.34 × 163,751.06
  4. Step 4: Simplify right side
    291,078.20x = 65,772,142,683.90
  5. Step 5: Solve for x
    x = 65,772,142,683.90/291,078.20
  6. Step 6: Final answer
    x = 225,960.39

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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.