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Finding the Fourth Proportional to 228,412.80, 341,647.20 and 204,890.40

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Solution

The fourth proportional to 228,412.80, 341,647.20 and 204,890.40 is: 306,463.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,412.80 : 341,647.20 = 204,890.40 : x
  2. Step 2: Convert to fraction form
    228,412.80/341,647.20 = 204,890.40/x
  3. Step 3: Cross multiply
    228,412.80x = 341,647.20 × 204,890.40
  4. Step 4: Simplify right side
    228,412.80x = 70,000,231,466.88
  5. Step 5: Solve for x
    x = 70,000,231,466.88/228,412.80
  6. Step 6: Final answer
    x = 306,463.70

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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.