Home / 205,388.40-307,564.20-152,511.60

Finding the Fourth Proportional to 205,388.40, 307,564.20 and 152,511.60

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Solution

The fourth proportional to 205,388.40, 307,564.20 and 152,511.60 is: 228,382.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,388.40 : 307,564.20 = 152,511.60 : x
  2. Step 2: Convert to fraction form
    205,388.40/307,564.20 = 152,511.60/x
  3. Step 3: Cross multiply
    205,388.40x = 307,564.20 × 152,511.60
  4. Step 4: Simplify right side
    205,388.40x = 46,907,108,244.72
  5. Step 5: Solve for x
    x = 46,907,108,244.72/205,388.40
  6. Step 6: Final answer
    x = 228,382.46

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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.