Home / 256,916.08-354,544.50-143,738.92

Finding the Fourth Proportional to 256,916.08, 354,544.50 and 143,738.92

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Solution

The fourth proportional to 256,916.08, 354,544.50 and 143,738.92 is: 198,359.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,916.08 : 354,544.50 = 143,738.92 : x
  2. Step 2: Convert to fraction form
    256,916.08/354,544.50 = 143,738.92/x
  3. Step 3: Cross multiply
    256,916.08x = 354,544.50 × 143,738.92
  4. Step 4: Simplify right side
    256,916.08x = 50,961,843,521.94
  5. Step 5: Solve for x
    x = 50,961,843,521.94/256,916.08
  6. Step 6: Final answer
    x = 198,359.88

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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.