Home / 276,055.34-380,720.21-190,151.36

Finding the Fourth Proportional to 276,055.34, 380,720.21 and 190,151.36

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Solution

The fourth proportional to 276,055.34, 380,720.21 and 190,151.36 is: 262,246.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,055.34 : 380,720.21 = 190,151.36 : x
  2. Step 2: Convert to fraction form
    276,055.34/380,720.21 = 190,151.36/x
  3. Step 3: Cross multiply
    276,055.34x = 380,720.21 × 190,151.36
  4. Step 4: Simplify right side
    276,055.34x = 72,394,462,856.63
  5. Step 5: Solve for x
    x = 72,394,462,856.63/276,055.34
  6. Step 6: Final answer
    x = 262,246.19

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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.