Home / 291,211.10-401,804.80-163,840.22

Finding the Fourth Proportional to 291,211.10, 401,804.80 and 163,840.22

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Solution

The fourth proportional to 291,211.10, 401,804.80 and 163,840.22 is: 226,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,211.10 : 401,804.80 = 163,840.22 : x
  2. Step 2: Convert to fraction form
    291,211.10/401,804.80 = 163,840.22/x
  3. Step 3: Cross multiply
    291,211.10x = 401,804.80 × 163,840.22
  4. Step 4: Simplify right side
    291,211.10x = 65,831,786,829.06
  5. Step 5: Solve for x
    x = 65,831,786,829.06/291,211.10
  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.