Home / 216,455.30-298,707.44-120,961.98

Finding the Fourth Proportional to 216,455.30, 298,707.44 and 120,961.98

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Solution

The fourth proportional to 216,455.30, 298,707.44 and 120,961.98 is: 166,927.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,455.30 : 298,707.44 = 120,961.98 : x
  2. Step 2: Convert to fraction form
    216,455.30/298,707.44 = 120,961.98/x
  3. Step 3: Cross multiply
    216,455.30x = 298,707.44 × 120,961.98
  4. Step 4: Simplify right side
    216,455.30x = 36,132,243,383.13
  5. Step 5: Solve for x
    x = 36,132,243,383.13/216,455.30
  6. Step 6: Final answer
    x = 166,927.04

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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.