Home / 285,813.10-394,437.82-158,485.96

Finding the Fourth Proportional to 285,813.10, 394,437.82 and 158,485.96

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Solution

The fourth proportional to 285,813.10, 394,437.82 and 158,485.96 is: 218,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,813.10 : 394,437.82 = 158,485.96 : x
  2. Step 2: Convert to fraction form
    285,813.10/394,437.82 = 158,485.96/x
  3. Step 3: Cross multiply
    285,813.10x = 394,437.82 × 158,485.96
  4. Step 4: Simplify right side
    285,813.10x = 62,512,854,590.82
  5. Step 5: Solve for x
    x = 62,512,854,590.82/285,813.10
  6. Step 6: Final answer
    x = 218,719.35

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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.