Home / 291,227.02-436,840.35-80,864.90

Finding the Fourth Proportional to 291,227.02, 436,840.35 and 80,864.90

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Solution

The fourth proportional to 291,227.02, 436,840.35 and 80,864.90 is: 121,297.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,227.02 : 436,840.35 = 80,864.90 : x
  2. Step 2: Convert to fraction form
    291,227.02/436,840.35 = 80,864.90/x
  3. Step 3: Cross multiply
    291,227.02x = 436,840.35 × 80,864.90
  4. Step 4: Simplify right side
    291,227.02x = 35,325,051,218.72
  5. Step 5: Solve for x
    x = 35,325,051,218.72/291,227.02
  6. Step 6: Final answer
    x = 121,297.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.