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Finding the Fourth Proportional to 216,302.56, 298,494.36 and 120,810.58

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Solution

The fourth proportional to 216,302.56, 298,494.36 and 120,810.58 is: 166,716.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,302.56 : 298,494.36 = 120,810.58 : x
  2. Step 2: Convert to fraction form
    216,302.56/298,494.36 = 120,810.58/x
  3. Step 3: Cross multiply
    216,302.56x = 298,494.36 × 120,810.58
  4. Step 4: Simplify right side
    216,302.56x = 36,061,276,758.33
  5. Step 5: Solve for x
    x = 36,061,276,758.33/216,302.56
  6. Step 6: Final answer
    x = 166,716.83

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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.