Home / 285,853.80-394,459.02-158,524.68

Finding the Fourth Proportional to 285,853.80, 394,459.02 and 158,524.68

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Solution

The fourth proportional to 285,853.80, 394,459.02 and 158,524.68 is: 218,753.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,853.80 : 394,459.02 = 158,524.68 : x
  2. Step 2: Convert to fraction form
    285,853.80/394,459.02 = 158,524.68/x
  3. Step 3: Cross multiply
    285,853.80x = 394,459.02 × 158,524.68
  4. Step 4: Simplify right side
    285,853.80x = 62,531,489,918.61
  5. Step 5: Solve for x
    x = 62,531,489,918.61/285,853.80
  6. Step 6: Final answer
    x = 218,753.40

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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.