Home / 384,338.70-530,436.33-223,161.66

Finding the Fourth Proportional to 384,338.70, 530,436.33 and 223,161.66

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Solution

The fourth proportional to 384,338.70, 530,436.33 and 223,161.66 is: 307,991.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,338.70 : 530,436.33 = 223,161.66 : x
  2. Step 2: Convert to fraction form
    384,338.70/530,436.33 = 223,161.66/x
  3. Step 3: Cross multiply
    384,338.70x = 530,436.33 × 223,161.66
  4. Step 4: Simplify right side
    384,338.70x = 118,373,051,927.11
  5. Step 5: Solve for x
    x = 118,373,051,927.11/384,338.70
  6. Step 6: Final answer
    x = 307,991.50

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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.