Home / 218,835.12-301,992.60-118,233.12

Finding the Fourth Proportional to 218,835.12, 301,992.60 and 118,233.12

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Solution

The fourth proportional to 218,835.12, 301,992.60 and 118,233.12 is: 163,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,835.12 : 301,992.60 = 118,233.12 : x
  2. Step 2: Convert to fraction form
    218,835.12/301,992.60 = 118,233.12/x
  3. Step 3: Cross multiply
    218,835.12x = 301,992.60 × 118,233.12
  4. Step 4: Simplify right side
    218,835.12x = 35,705,527,314.91
  5. Step 5: Solve for x
    x = 35,705,527,314.91/218,835.12
  6. Step 6: Final answer
    x = 163,161.78

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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.