Home / 229,855.34-317,199.40-127,890.56

Finding the Fourth Proportional to 229,855.34, 317,199.40 and 127,890.56

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Solution

The fourth proportional to 229,855.34, 317,199.40 and 127,890.56 is: 176,488.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,855.34 : 317,199.40 = 127,890.56 : x
  2. Step 2: Convert to fraction form
    229,855.34/317,199.40 = 127,890.56/x
  3. Step 3: Cross multiply
    229,855.34x = 317,199.40 × 127,890.56
  4. Step 4: Simplify right side
    229,855.34x = 40,566,809,370.94
  5. Step 5: Solve for x
    x = 40,566,809,370.94/229,855.34
  6. Step 6: Final answer
    x = 176,488.43

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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.