Home / 389,230.20-583,391.70-178,889.40

Finding the Fourth Proportional to 389,230.20, 583,391.70 and 178,889.40

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Solution

The fourth proportional to 389,230.20, 583,391.70 and 178,889.40 is: 268,125.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,230.20 : 583,391.70 = 178,889.40 : x
  2. Step 2: Convert to fraction form
    389,230.20/583,391.70 = 178,889.40/x
  3. Step 3: Cross multiply
    389,230.20x = 583,391.70 × 178,889.40
  4. Step 4: Simplify right side
    389,230.20x = 104,362,591,177.98
  5. Step 5: Solve for x
    x = 104,362,591,177.98/389,230.20
  6. Step 6: Final answer
    x = 268,125.63

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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.