Home / 256,972.24-354,626.40-143,794.72

Finding the Fourth Proportional to 256,972.24, 354,626.40 and 143,794.72

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Solution

The fourth proportional to 256,972.24, 354,626.40 and 143,794.72 is: 198,439.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,972.24 : 354,626.40 = 143,794.72 : x
  2. Step 2: Convert to fraction form
    256,972.24/354,626.40 = 143,794.72/x
  3. Step 3: Cross multiply
    256,972.24x = 354,626.40 × 143,794.72
  4. Step 4: Simplify right side
    256,972.24x = 50,993,403,892.61
  5. Step 5: Solve for x
    x = 50,993,403,892.61/256,972.24
  6. Step 6: Final answer
    x = 198,439.35

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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.