Home / 291,213.09-401,807.57-163,842.21

Finding the Fourth Proportional to 291,213.09, 401,807.57 and 163,842.21

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Solution

The fourth proportional to 291,213.09, 401,807.57 and 163,842.21 is: 226,064.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,213.09 : 401,807.57 = 163,842.21 : x
  2. Step 2: Convert to fraction form
    291,213.09/401,807.57 = 163,842.21/x
  3. Step 3: Cross multiply
    291,213.09x = 401,807.57 × 163,842.21
  4. Step 4: Simplify right side
    291,213.09x = 65,833,040,263.53
  5. Step 5: Solve for x
    x = 65,833,040,263.53/291,213.09
  6. Step 6: Final answer
    x = 226,064.84

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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.