Home / 285,501.24-427,879.80-159,136.38

Finding the Fourth Proportional to 285,501.24, 427,879.80 and 159,136.38

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Solution

The fourth proportional to 285,501.24, 427,879.80 and 159,136.38 is: 238,497.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,501.24 : 427,879.80 = 159,136.38 : x
  2. Step 2: Convert to fraction form
    285,501.24/427,879.80 = 159,136.38/x
  3. Step 3: Cross multiply
    285,501.24x = 427,879.80 × 159,136.38
  4. Step 4: Simplify right side
    285,501.24x = 68,091,242,447.12
  5. Step 5: Solve for x
    x = 68,091,242,447.12/285,501.24
  6. Step 6: Final answer
    x = 238,497.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.