Home / 389,379.24-583,980.78-178,814.76

Finding the Fourth Proportional to 389,379.24, 583,980.78 and 178,814.76

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Solution

The fourth proportional to 389,379.24, 583,980.78 and 178,814.76 is: 268,181.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,379.24 : 583,980.78 = 178,814.76 : x
  2. Step 2: Convert to fraction form
    389,379.24/583,980.78 = 178,814.76/x
  3. Step 3: Cross multiply
    389,379.24x = 583,980.78 × 178,814.76
  4. Step 4: Simplify right side
    389,379.24x = 104,424,383,020.31
  5. Step 5: Solve for x
    x = 104,424,383,020.31/389,379.24
  6. Step 6: Final answer
    x = 268,181.69

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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.