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Finding the Fourth Proportional to 286,693.98, 395,589.87 and 159,352.26

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Solution

The fourth proportional to 286,693.98, 395,589.87 and 159,352.26 is: 219,879.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,693.98 : 395,589.87 = 159,352.26 : x
  2. Step 2: Convert to fraction form
    286,693.98/395,589.87 = 159,352.26/x
  3. Step 3: Cross multiply
    286,693.98x = 395,589.87 × 159,352.26
  4. Step 4: Simplify right side
    286,693.98x = 63,038,139,817.61
  5. Step 5: Solve for x
    x = 63,038,139,817.61/286,693.98
  6. Step 6: Final answer
    x = 219,879.54

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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.