Home / 285,899.16-394,588.08-158,615.76

Finding the Fourth Proportional to 285,899.16, 394,588.08 and 158,615.76

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Solution

The fourth proportional to 285,899.16, 394,588.08 and 158,615.76 is: 218,915.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,899.16 : 394,588.08 = 158,615.76 : x
  2. Step 2: Convert to fraction form
    285,899.16/394,588.08 = 158,615.76/x
  3. Step 3: Cross multiply
    285,899.16x = 394,588.08 × 158,615.76
  4. Step 4: Simplify right side
    285,899.16x = 62,587,888,196.14
  5. Step 5: Solve for x
    x = 62,587,888,196.14/285,899.16
  6. Step 6: Final answer
    x = 218,915.96

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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.