Home / 276,142.26-381,078.54-153,636.44

Finding the Fourth Proportional to 276,142.26, 381,078.54 and 153,636.44

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Solution

The fourth proportional to 276,142.26, 381,078.54 and 153,636.44 is: 212,019.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,142.26 : 381,078.54 = 153,636.44 : x
  2. Step 2: Convert to fraction form
    276,142.26/381,078.54 = 153,636.44/x
  3. Step 3: Cross multiply
    276,142.26x = 381,078.54 × 153,636.44
  4. Step 4: Simplify right side
    276,142.26x = 58,547,550,246.00
  5. Step 5: Solve for x
    x = 58,547,550,246.00/276,142.26
  6. Step 6: Final answer
    x = 212,019.52

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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.