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Finding the Fourth Proportional to 218,682.86, 301,679.16 and 127,982.63

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Solution

The fourth proportional to 218,682.86, 301,679.16 and 127,982.63 is: 176,555.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,682.86 : 301,679.16 = 127,982.63 : x
  2. Step 2: Convert to fraction form
    218,682.86/301,679.16 = 127,982.63/x
  3. Step 3: Cross multiply
    218,682.86x = 301,679.16 × 127,982.63
  4. Step 4: Simplify right side
    218,682.86x = 38,609,690,804.60
  5. Step 5: Solve for x
    x = 38,609,690,804.60/218,682.86
  6. Step 6: Final answer
    x = 176,555.64

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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.