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Finding the Fourth Proportional to 286,876.80, 430,169.40 and 168,584.40

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Solution

The fourth proportional to 286,876.80, 430,169.40 and 168,584.40 is: 252,790.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,876.80 : 430,169.40 = 168,584.40 : x
  2. Step 2: Convert to fraction form
    286,876.80/430,169.40 = 168,584.40/x
  3. Step 3: Cross multiply
    286,876.80x = 430,169.40 × 168,584.40
  4. Step 4: Simplify right side
    286,876.80x = 72,519,850,197.36
  5. Step 5: Solve for x
    x = 72,519,850,197.36/286,876.80
  6. Step 6: Final answer
    x = 252,790.92

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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.