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Finding the Fourth Proportional to 533,999.20, 800,998.80 and 159,973.60

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Solution

The fourth proportional to 533,999.20, 800,998.80 and 159,973.60 is: 239,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,999.20 : 800,998.80 = 159,973.60 : x
  2. Step 2: Convert to fraction form
    533,999.20/800,998.80 = 159,973.60/x
  3. Step 3: Cross multiply
    533,999.20x = 800,998.80 × 159,973.60
  4. Step 4: Simplify right side
    533,999.20x = 128,138,661,631.68
  5. Step 5: Solve for x
    x = 128,138,661,631.68/533,999.20
  6. Step 6: Final answer
    x = 239,960.40

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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.