Home / 291,878.24-437,842.20-92,145.20

Finding the Fourth Proportional to 291,878.24, 437,842.20 and 92,145.20

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Solution

The fourth proportional to 291,878.24, 437,842.20 and 92,145.20 is: 138,225.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,878.24 : 437,842.20 = 92,145.20 : x
  2. Step 2: Convert to fraction form
    291,878.24/437,842.20 = 92,145.20/x
  3. Step 3: Cross multiply
    291,878.24x = 437,842.20 × 92,145.20
  4. Step 4: Simplify right side
    291,878.24x = 40,345,057,087.44
  5. Step 5: Solve for x
    x = 40,345,057,087.44/291,878.24
  6. Step 6: Final answer
    x = 138,225.64

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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.