Home / 208,140.30-311,882.40-174,679.20

Finding the Fourth Proportional to 208,140.30, 311,882.40 and 174,679.20

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Solution

The fourth proportional to 208,140.30, 311,882.40 and 174,679.20 is: 261,743.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,140.30 : 311,882.40 = 174,679.20 : x
  2. Step 2: Convert to fraction form
    208,140.30/311,882.40 = 174,679.20/x
  3. Step 3: Cross multiply
    208,140.30x = 311,882.40 × 174,679.20
  4. Step 4: Simplify right side
    208,140.30x = 54,479,368,126.08
  5. Step 5: Solve for x
    x = 54,479,368,126.08/208,140.30
  6. Step 6: Final answer
    x = 261,743.49

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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.