Home / 276,256.87-381,228.85-161,603.39

Finding the Fourth Proportional to 276,256.87, 381,228.85 and 161,603.39

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Solution

The fourth proportional to 276,256.87, 381,228.85 and 161,603.39 is: 223,009.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,256.87 : 381,228.85 = 161,603.39 : x
  2. Step 2: Convert to fraction form
    276,256.87/381,228.85 = 161,603.39/x
  3. Step 3: Cross multiply
    276,256.87x = 381,228.85 × 161,603.39
  4. Step 4: Simplify right side
    276,256.87x = 61,607,875,074.87
  5. Step 5: Solve for x
    x = 61,607,875,074.87/276,256.87
  6. Step 6: Final answer
    x = 223,009.39

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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.