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Finding the Fourth Proportional to 540,059.21, 810,078.78 and 161,236.79

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Solution

The fourth proportional to 540,059.21, 810,078.78 and 161,236.79 is: 241,852.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,059.21 : 810,078.78 = 161,236.79 : x
  2. Step 2: Convert to fraction form
    540,059.21/810,078.78 = 161,236.79/x
  3. Step 3: Cross multiply
    540,059.21x = 810,078.78 × 161,236.79
  4. Step 4: Simplify right side
    540,059.21x = 130,614,502,134.32
  5. Step 5: Solve for x
    x = 130,614,502,134.32/540,059.21
  6. Step 6: Final answer
    x = 241,852.19

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Similar ratio
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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.