Home / 213,423.72-294,580.08-122,788.97

Finding the Fourth Proportional to 213,423.72, 294,580.08 and 122,788.97

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Solution

The fourth proportional to 213,423.72, 294,580.08 and 122,788.97 is: 169,480.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,423.72 : 294,580.08 = 122,788.97 : x
  2. Step 2: Convert to fraction form
    213,423.72/294,580.08 = 122,788.97/x
  3. Step 3: Cross multiply
    213,423.72x = 294,580.08 × 122,788.97
  4. Step 4: Simplify right side
    213,423.72x = 36,171,183,991.77
  5. Step 5: Solve for x
    x = 36,171,183,991.77/213,423.72
  6. Step 6: Final answer
    x = 169,480.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.