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Finding the Fourth Proportional to 180,000.80, 270,001.20 and 159,783.20

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Solution

The fourth proportional to 180,000.80, 270,001.20 and 159,783.20 is: 239,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,000.80 : 270,001.20 = 159,783.20 : x
  2. Step 2: Convert to fraction form
    180,000.80/270,001.20 = 159,783.20/x
  3. Step 3: Cross multiply
    180,000.80x = 270,001.20 × 159,783.20
  4. Step 4: Simplify right side
    180,000.80x = 43,141,655,739.84
  5. Step 5: Solve for x
    x = 43,141,655,739.84/180,000.80
  6. Step 6: Final answer
    x = 239,674.80

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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.