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Finding the Fourth Proportional to 285,912, 394,558.88 and 166,703.04

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Solution

The fourth proportional to 285,912, 394,558.88 and 166,703.04 is: 230,050.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,912 : 394,558.88 = 166,703.04 : x
  2. Step 2: Convert to fraction form
    285,912/394,558.88 = 166,703.04/x
  3. Step 3: Cross multiply
    285,912x = 394,558.88 × 166,703.04
  4. Step 4: Simplify right side
    285,912x = 65,774,164,755.00
  5. Step 5: Solve for x
    x = 65,774,164,755.00/285,912
  6. Step 6: Final answer
    x = 230,050.38

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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.