Home / 276,047.37-380,709.23-190,143.38

Finding the Fourth Proportional to 276,047.37, 380,709.23 and 190,143.38

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Solution

The fourth proportional to 276,047.37, 380,709.23 and 190,143.38 is: 262,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,047.37 : 380,709.23 = 190,143.38 : x
  2. Step 2: Convert to fraction form
    276,047.37/380,709.23 = 190,143.38/x
  3. Step 3: Cross multiply
    276,047.37x = 380,709.23 × 190,143.38
  4. Step 4: Simplify right side
    276,047.37x = 72,389,336,935.13
  5. Step 5: Solve for x
    x = 72,389,336,935.13/276,047.37
  6. Step 6: Final answer
    x = 262,235.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.