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Finding the Fourth Proportional to 285,897, 394,527.74 and 158,584.44

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Solution

The fourth proportional to 285,897, 394,527.74 and 158,584.44 is: 218,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,897 : 394,527.74 = 158,584.44 : x
  2. Step 2: Convert to fraction form
    285,897/394,527.74 = 158,584.44/x
  3. Step 3: Cross multiply
    285,897x = 394,527.74 × 158,584.44
  4. Step 4: Simplify right side
    285,897x = 62,565,960,712.37
  5. Step 5: Solve for x
    x = 62,565,960,712.37/285,897
  6. Step 6: Final answer
    x = 218,840.91

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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.