Home / 291,876.24-437,839.20-92,143.20

Finding the Fourth Proportional to 291,876.24, 437,839.20 and 92,143.20

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Solution

The fourth proportional to 291,876.24, 437,839.20 and 92,143.20 is: 138,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,876.24 : 437,839.20 = 92,143.20 : x
  2. Step 2: Convert to fraction form
    291,876.24/437,839.20 = 92,143.20/x
  3. Step 3: Cross multiply
    291,876.24x = 437,839.20 × 92,143.20
  4. Step 4: Simplify right side
    291,876.24x = 40,343,904,973.44
  5. Step 5: Solve for x
    x = 40,343,904,973.44/291,876.24
  6. Step 6: Final answer
    x = 138,222.64

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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.