Home / 213,421.50-320,105.70-133,466.58

Finding the Fourth Proportional to 213,421.50, 320,105.70 and 133,466.58

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Solution

The fourth proportional to 213,421.50, 320,105.70 and 133,466.58 is: 200,183.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,421.50 : 320,105.70 = 133,466.58 : x
  2. Step 2: Convert to fraction form
    213,421.50/320,105.70 = 133,466.58/x
  3. Step 3: Cross multiply
    213,421.50x = 320,105.70 × 133,466.58
  4. Step 4: Simplify right side
    213,421.50x = 42,723,413,017.51
  5. Step 5: Solve for x
    x = 42,723,413,017.51/213,421.50
  6. Step 6: Final answer
    x = 200,183.27

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1.5x scale

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.