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Finding the Fourth Proportional to 216,003, 298,092.78 and 120,518.04

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Solution

The fourth proportional to 216,003, 298,092.78 and 120,518.04 is: 166,319.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,003 : 298,092.78 = 120,518.04 : x
  2. Step 2: Convert to fraction form
    216,003/298,092.78 = 120,518.04/x
  3. Step 3: Cross multiply
    216,003x = 298,092.78 × 120,518.04
  4. Step 4: Simplify right side
    216,003x = 35,925,557,583.75
  5. Step 5: Solve for x
    x = 35,925,557,583.75/216,003
  6. Step 6: Final answer
    x = 166,319.72

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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.