Home / 218,615.09-301,710.34-127,965.56

Finding the Fourth Proportional to 218,615.09, 301,710.34 and 127,965.56

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Solution

The fourth proportional to 218,615.09, 301,710.34 and 127,965.56 is: 176,605.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,615.09 : 301,710.34 = 127,965.56 : x
  2. Step 2: Convert to fraction form
    218,615.09/301,710.34 = 127,965.56/x
  3. Step 3: Cross multiply
    218,615.09x = 301,710.34 × 127,965.56
  4. Step 4: Simplify right side
    218,615.09x = 38,608,531,107.34
  5. Step 5: Solve for x
    x = 38,608,531,107.34/218,615.09
  6. Step 6: Final answer
    x = 176,605.06

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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.