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Finding the Fourth Proportional to 384,856.58, 531,116.85 and 255,571.54

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Solution

The fourth proportional to 384,856.58, 531,116.85 and 255,571.54 is: 352,698.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,856.58 : 531,116.85 = 255,571.54 : x
  2. Step 2: Convert to fraction form
    384,856.58/531,116.85 = 255,571.54/x
  3. Step 3: Cross multiply
    384,856.58x = 531,116.85 × 255,571.54
  4. Step 4: Simplify right side
    384,856.58x = 135,738,349,996.59
  5. Step 5: Solve for x
    x = 135,738,349,996.59/384,856.58
  6. Step 6: Final answer
    x = 352,698.53

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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.