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Finding the Fourth Proportional to 300,000.40, 450,000.60 and 194,246.80

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Solution

The fourth proportional to 300,000.40, 450,000.60 and 194,246.80 is: 291,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,000.40 : 450,000.60 = 194,246.80 : x
  2. Step 2: Convert to fraction form
    300,000.40/450,000.60 = 194,246.80/x
  3. Step 3: Cross multiply
    300,000.40x = 450,000.60 × 194,246.80
  4. Step 4: Simplify right side
    300,000.40x = 87,411,176,548.08
  5. Step 5: Solve for x
    x = 87,411,176,548.08/300,000.40
  6. Step 6: Final answer
    x = 291,370.20

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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.