Home / 405,974.08-609,136.12-169,363.36

Finding the Fourth Proportional to 405,974.08, 609,136.12 and 169,363.36

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Solution

The fourth proportional to 405,974.08, 609,136.12 and 169,363.36 is: 254,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,974.08 : 609,136.12 = 169,363.36 : x
  2. Step 2: Convert to fraction form
    405,974.08/609,136.12 = 169,363.36/x
  3. Step 3: Cross multiply
    405,974.08x = 609,136.12 × 169,363.36
  4. Step 4: Simplify right side
    405,974.08x = 103,165,339,980.56
  5. Step 5: Solve for x
    x = 103,165,339,980.56/405,974.08
  6. Step 6: Final answer
    x = 254,118.05

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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.