Home / 291,211.08-401,804.82-163,840.20

Finding the Fourth Proportional to 291,211.08, 401,804.82 and 163,840.20

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Solution

The fourth proportional to 291,211.08, 401,804.82 and 163,840.20 is: 226,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,211.08 : 401,804.82 = 163,840.20 : x
  2. Step 2: Convert to fraction form
    291,211.08/401,804.82 = 163,840.20/x
  3. Step 3: Cross multiply
    291,211.08x = 401,804.82 × 163,840.20
  4. Step 4: Simplify right side
    291,211.08x = 65,831,782,069.76
  5. Step 5: Solve for x
    x = 65,831,782,069.76/291,211.08
  6. Step 6: Final answer
    x = 226,062.08

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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.