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Finding the Fourth Proportional to 301,874.40, 452,811.60 and 135,986.40

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Solution

The fourth proportional to 301,874.40, 452,811.60 and 135,986.40 is: 203,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,874.40 : 452,811.60 = 135,986.40 : x
  2. Step 2: Convert to fraction form
    301,874.40/452,811.60 = 135,986.40/x
  3. Step 3: Cross multiply
    301,874.40x = 452,811.60 × 135,986.40
  4. Step 4: Simplify right side
    301,874.40x = 61,576,219,362.24
  5. Step 5: Solve for x
    x = 61,576,219,362.24/301,874.40
  6. Step 6: Final answer
    x = 203,979.60

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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.