Home / 389,438.16-584,177.76-123,226.80

Finding the Fourth Proportional to 389,438.16, 584,177.76 and 123,226.80

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Solution

The fourth proportional to 389,438.16, 584,177.76 and 123,226.80 is: 184,846.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,438.16 : 584,177.76 = 123,226.80 : x
  2. Step 2: Convert to fraction form
    389,438.16/584,177.76 = 123,226.80/x
  3. Step 3: Cross multiply
    389,438.16x = 584,177.76 × 123,226.80
  4. Step 4: Simplify right side
    389,438.16x = 71,986,355,995.97
  5. Step 5: Solve for x
    x = 71,986,355,995.97/389,438.16
  6. Step 6: Final answer
    x = 184,846.69

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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.