Home / 405,245.16-607,676.85-236,814.21

Finding the Fourth Proportional to 405,245.16, 607,676.85 and 236,814.21

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Solution

The fourth proportional to 405,245.16, 607,676.85 and 236,814.21 is: 355,109.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,245.16 : 607,676.85 = 236,814.21 : x
  2. Step 2: Convert to fraction form
    405,245.16/607,676.85 = 236,814.21/x
  3. Step 3: Cross multiply
    405,245.16x = 607,676.85 × 236,814.21
  4. Step 4: Simplify right side
    405,245.16x = 143,906,513,168.04
  5. Step 5: Solve for x
    x = 143,906,513,168.04/405,245.16
  6. Step 6: Final answer
    x = 355,109.76

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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.