Home / 285,187.67-393,558.98-157,863.26

Finding the Fourth Proportional to 285,187.67, 393,558.98 and 157,863.26

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Solution

The fourth proportional to 285,187.67, 393,558.98 and 157,863.26 is: 217,851.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,187.67 : 393,558.98 = 157,863.26 : x
  2. Step 2: Convert to fraction form
    285,187.67/393,558.98 = 157,863.26/x
  3. Step 3: Cross multiply
    285,187.67x = 393,558.98 × 157,863.26
  4. Step 4: Simplify right side
    285,187.67x = 62,128,500,827.96
  5. Step 5: Solve for x
    x = 62,128,500,827.96/285,187.67
  6. Step 6: Final answer
    x = 217,851.29

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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.