Home / 217,918.40-300,674.48-127,222.43

Finding the Fourth Proportional to 217,918.40, 300,674.48 and 127,222.43

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Solution

The fourth proportional to 217,918.40, 300,674.48 and 127,222.43 is: 175,536.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,918.40 : 300,674.48 = 127,222.43 : x
  2. Step 2: Convert to fraction form
    217,918.40/300,674.48 = 127,222.43/x
  3. Step 3: Cross multiply
    217,918.40x = 300,674.48 × 127,222.43
  4. Step 4: Simplify right side
    217,918.40x = 38,252,535,845.10
  5. Step 5: Solve for x
    x = 38,252,535,845.10/217,918.40
  6. Step 6: Final answer
    x = 175,536.06

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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.