Home / 208,011.36-311,984.21-74,823.06

Finding the Fourth Proportional to 208,011.36, 311,984.21 and 74,823.06

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Solution

The fourth proportional to 208,011.36, 311,984.21 and 74,823.06 is: 112,222.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,011.36 : 311,984.21 = 74,823.06 : x
  2. Step 2: Convert to fraction form
    208,011.36/311,984.21 = 74,823.06/x
  3. Step 3: Cross multiply
    208,011.36x = 311,984.21 × 74,823.06
  4. Step 4: Simplify right side
    208,011.36x = 23,343,612,889.77
  5. Step 5: Solve for x
    x = 23,343,612,889.77/208,011.36
  6. Step 6: Final answer
    x = 112,222.78

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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.