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Finding the Fourth Proportional to 452,273.40, 678,410.10 and 185,945.40

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Solution

The fourth proportional to 452,273.40, 678,410.10 and 185,945.40 is: 278,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,273.40 : 678,410.10 = 185,945.40 : x
  2. Step 2: Convert to fraction form
    452,273.40/678,410.10 = 185,945.40/x
  3. Step 3: Cross multiply
    452,273.40x = 678,410.10 × 185,945.40
  4. Step 4: Simplify right side
    452,273.40x = 126,147,237,408.54
  5. Step 5: Solve for x
    x = 126,147,237,408.54/452,273.40
  6. Step 6: Final answer
    x = 278,918.10

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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.