Home / 389,270.20-583,991.70-178,857.40

Finding the Fourth Proportional to 389,270.20, 583,991.70 and 178,857.40

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Solution

The fourth proportional to 389,270.20, 583,991.70 and 178,857.40 is: 268,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,270.20 : 583,991.70 = 178,857.40 : x
  2. Step 2: Convert to fraction form
    389,270.20/583,991.70 = 178,857.40/x
  3. Step 3: Cross multiply
    389,270.20x = 583,991.70 × 178,857.40
  4. Step 4: Simplify right side
    389,270.20x = 104,451,237,083.58
  5. Step 5: Solve for x
    x = 104,451,237,083.58/389,270.20
  6. Step 6: Final answer
    x = 268,325.80

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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.