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Finding the Fourth Proportional to 217,999.40, 326,826.30 and 119,503.40

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Solution

The fourth proportional to 217,999.40, 326,826.30 and 119,503.40 is: 179,160.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,999.40 : 326,826.30 = 119,503.40 : x
  2. Step 2: Convert to fraction form
    217,999.40/326,826.30 = 119,503.40/x
  3. Step 3: Cross multiply
    217,999.40x = 326,826.30 × 119,503.40
  4. Step 4: Simplify right side
    217,999.40x = 39,056,854,059.42
  5. Step 5: Solve for x
    x = 39,056,854,059.42/217,999.40
  6. Step 6: Final answer
    x = 179,160.37

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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.