Home / 389,722.66-584,622.39-161,971.30

Finding the Fourth Proportional to 389,722.66, 584,622.39 and 161,971.30

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Solution

The fourth proportional to 389,722.66, 584,622.39 and 161,971.30 is: 242,972.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,722.66 : 584,622.39 = 161,971.30 : x
  2. Step 2: Convert to fraction form
    389,722.66/584,622.39 = 161,971.30/x
  3. Step 3: Cross multiply
    389,722.66x = 584,622.39 × 161,971.30
  4. Step 4: Simplify right side
    389,722.66x = 94,692,048,517.41
  5. Step 5: Solve for x
    x = 94,692,048,517.41/389,722.66
  6. Step 6: Final answer
    x = 242,972.91

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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.