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Finding the Fourth Proportional to 298,052.70, 447,079.05 and 120,468.30

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Solution

The fourth proportional to 298,052.70, 447,079.05 and 120,468.30 is: 180,702.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,052.70 : 447,079.05 = 120,468.30 : x
  2. Step 2: Convert to fraction form
    298,052.70/447,079.05 = 120,468.30/x
  3. Step 3: Cross multiply
    298,052.70x = 447,079.05 × 120,468.30
  4. Step 4: Simplify right side
    298,052.70x = 53,858,853,119.12
  5. Step 5: Solve for x
    x = 53,858,853,119.12/298,052.70
  6. Step 6: Final answer
    x = 180,702.45

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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.