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Finding the Fourth Proportional to 366,979.60, 550,469.40 and 156,638.80

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Solution

The fourth proportional to 366,979.60, 550,469.40 and 156,638.80 is: 234,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,979.60 : 550,469.40 = 156,638.80 : x
  2. Step 2: Convert to fraction form
    366,979.60/550,469.40 = 156,638.80/x
  3. Step 3: Cross multiply
    366,979.60x = 550,469.40 × 156,638.80
  4. Step 4: Simplify right side
    366,979.60x = 86,224,866,252.72
  5. Step 5: Solve for x
    x = 86,224,866,252.72/366,979.60
  6. Step 6: Final answer
    x = 234,958.20

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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.