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Finding the Fourth Proportional to 324,009.85, 486,014.78 and 181,709.05

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Solution

The fourth proportional to 324,009.85, 486,014.78 and 181,709.05 is: 272,563.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,009.85 : 486,014.78 = 181,709.05 : x
  2. Step 2: Convert to fraction form
    324,009.85/486,014.78 = 181,709.05/x
  3. Step 3: Cross multiply
    324,009.85x = 486,014.78 × 181,709.05
  4. Step 4: Simplify right side
    324,009.85x = 88,313,283,051.21
  5. Step 5: Solve for x
    x = 88,313,283,051.21/324,009.85
  6. Step 6: Final answer
    x = 272,563.58

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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.