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Finding the Fourth Proportional to 280,863.60, 422,044.20 and 154,604.40

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Solution

The fourth proportional to 280,863.60, 422,044.20 and 154,604.40 is: 232,318.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,863.60 : 422,044.20 = 154,604.40 : x
  2. Step 2: Convert to fraction form
    280,863.60/422,044.20 = 154,604.40/x
  3. Step 3: Cross multiply
    280,863.60x = 422,044.20 × 154,604.40
  4. Step 4: Simplify right side
    280,863.60x = 65,249,890,314.48
  5. Step 5: Solve for x
    x = 65,249,890,314.48/280,863.60
  6. Step 6: Final answer
    x = 232,318.79

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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.