Home / 276,612.09-381,761.78-161,925.81

Finding the Fourth Proportional to 276,612.09, 381,761.78 and 161,925.81

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Solution

The fourth proportional to 276,612.09, 381,761.78 and 161,925.81 is: 223,479.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,612.09 : 381,761.78 = 161,925.81 : x
  2. Step 2: Convert to fraction form
    276,612.09/381,761.78 = 161,925.81/x
  3. Step 3: Cross multiply
    276,612.09x = 381,761.78 × 161,925.81
  4. Step 4: Simplify right side
    276,612.09x = 61,817,084,643.91
  5. Step 5: Solve for x
    x = 61,817,084,643.91/276,612.09
  6. Step 6: Final answer
    x = 223,479.33

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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.