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Finding the Fourth Proportional to 205,579.60, 308,223.60 and 93,313.60

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Solution

The fourth proportional to 205,579.60, 308,223.60 and 93,313.60 is: 139,904.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,579.60 : 308,223.60 = 93,313.60 : x
  2. Step 2: Convert to fraction form
    205,579.60/308,223.60 = 93,313.60/x
  3. Step 3: Cross multiply
    205,579.60x = 308,223.60 × 93,313.60
  4. Step 4: Simplify right side
    205,579.60x = 28,761,453,720.96
  5. Step 5: Solve for x
    x = 28,761,453,720.96/205,579.60
  6. Step 6: Final answer
    x = 139,904.22

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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.