Home / 291,132.02-401,758.08-163,807.31

Finding the Fourth Proportional to 291,132.02, 401,758.08 and 163,807.31

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Solution

The fourth proportional to 291,132.02, 401,758.08 and 163,807.31 is: 226,051.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,132.02 : 401,758.08 = 163,807.31 : x
  2. Step 2: Convert to fraction form
    291,132.02/401,758.08 = 163,807.31/x
  3. Step 3: Cross multiply
    291,132.02x = 401,758.08 × 163,807.31
  4. Step 4: Simplify right side
    291,132.02x = 65,810,910,745.68
  5. Step 5: Solve for x
    x = 65,810,910,745.68/291,132.02
  6. Step 6: Final answer
    x = 226,051.78

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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.