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Finding the Fourth Proportional to 218,412.63, 301,362.84 and 127,750.86

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Solution

The fourth proportional to 218,412.63, 301,362.84 and 127,750.86 is: 176,268.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,412.63 : 301,362.84 = 127,750.86 : x
  2. Step 2: Convert to fraction form
    218,412.63/301,362.84 = 127,750.86/x
  3. Step 3: Cross multiply
    218,412.63x = 301,362.84 × 127,750.86
  4. Step 4: Simplify right side
    218,412.63x = 38,499,361,982.04
  5. Step 5: Solve for x
    x = 38,499,361,982.04/218,412.63
  6. Step 6: Final answer
    x = 176,268.94

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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.