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Finding the Fourth Proportional to 371,550.60, 512,783.60 and 220,647.60

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Solution

The fourth proportional to 371,550.60, 512,783.60 and 220,647.60 is: 304,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,550.60 : 512,783.60 = 220,647.60 : x
  2. Step 2: Convert to fraction form
    371,550.60/512,783.60 = 220,647.60/x
  3. Step 3: Cross multiply
    371,550.60x = 512,783.60 × 220,647.60
  4. Step 4: Simplify right side
    371,550.60x = 113,144,470,659.36
  5. Step 5: Solve for x
    x = 113,144,470,659.36/371,550.60
  6. Step 6: Final answer
    x = 304,519.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.