Home / 209,261.51-313,900.50-109,353.86

Finding the Fourth Proportional to 209,261.51, 313,900.50 and 109,353.86

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Solution

The fourth proportional to 209,261.51, 313,900.50 and 109,353.86 is: 164,035.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,261.51 : 313,900.50 = 109,353.86 : x
  2. Step 2: Convert to fraction form
    209,261.51/313,900.50 = 109,353.86/x
  3. Step 3: Cross multiply
    209,261.51x = 313,900.50 × 109,353.86
  4. Step 4: Simplify right side
    209,261.51x = 34,326,231,330.93
  5. Step 5: Solve for x
    x = 34,326,231,330.93/209,261.51
  6. Step 6: Final answer
    x = 164,035.09

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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.