Home / 218,125.62-301,009.01-121,327.38

Finding the Fourth Proportional to 218,125.62, 301,009.01 and 121,327.38

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Solution

The fourth proportional to 218,125.62, 301,009.01 and 121,327.38 is: 167,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,125.62 : 301,009.01 = 121,327.38 : x
  2. Step 2: Convert to fraction form
    218,125.62/301,009.01 = 121,327.38/x
  3. Step 3: Cross multiply
    218,125.62x = 301,009.01 × 121,327.38
  4. Step 4: Simplify right side
    218,125.62x = 36,520,633,933.06
  5. Step 5: Solve for x
    x = 36,520,633,933.06/218,125.62
  6. Step 6: Final answer
    x = 167,429.36

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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.