Home / 212,556.80-293,360.64-161,485.76

Finding the Fourth Proportional to 212,556.80, 293,360.64 and 161,485.76

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Solution

The fourth proportional to 212,556.80, 293,360.64 and 161,485.76 is: 222,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,556.80 : 293,360.64 = 161,485.76 : x
  2. Step 2: Convert to fraction form
    212,556.80/293,360.64 = 161,485.76/x
  3. Step 3: Cross multiply
    212,556.80x = 293,360.64 × 161,485.76
  4. Step 4: Simplify right side
    212,556.80x = 47,373,565,904.49
  5. Step 5: Solve for x
    x = 47,373,565,904.49/212,556.80
  6. Step 6: Final answer
    x = 222,874.85

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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.