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Finding the Fourth Proportional to 377,999.20, 566,998.80 and 211,765.60

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Solution

The fourth proportional to 377,999.20, 566,998.80 and 211,765.60 is: 317,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,999.20 : 566,998.80 = 211,765.60 : x
  2. Step 2: Convert to fraction form
    377,999.20/566,998.80 = 211,765.60/x
  3. Step 3: Cross multiply
    377,999.20x = 566,998.80 × 211,765.60
  4. Step 4: Simplify right side
    377,999.20x = 120,070,841,081.28
  5. Step 5: Solve for x
    x = 120,070,841,081.28/377,999.20
  6. Step 6: Final answer
    x = 317,648.40

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1.5x scale

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.