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Finding the Fourth Proportional to 382,896.96, 528,400.80 and 231,888.96

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Solution

The fourth proportional to 382,896.96, 528,400.80 and 231,888.96 is: 320,008.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,896.96 : 528,400.80 = 231,888.96 : x
  2. Step 2: Convert to fraction form
    382,896.96/528,400.80 = 231,888.96/x
  3. Step 3: Cross multiply
    382,896.96x = 528,400.80 × 231,888.96
  4. Step 4: Simplify right side
    382,896.96x = 122,530,311,975.17
  5. Step 5: Solve for x
    x = 122,530,311,975.17/382,896.96
  6. Step 6: Final answer
    x = 320,008.58

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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.