Home / 202,886.20-304,515.30-103,115.80

Finding the Fourth Proportional to 202,886.20, 304,515.30 and 103,115.80

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Solution

The fourth proportional to 202,886.20, 304,515.30 and 103,115.80 is: 154,768.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,886.20 : 304,515.30 = 103,115.80 : x
  2. Step 2: Convert to fraction form
    202,886.20/304,515.30 = 103,115.80/x
  3. Step 3: Cross multiply
    202,886.20x = 304,515.30 × 103,115.80
  4. Step 4: Simplify right side
    202,886.20x = 31,400,338,771.74
  5. Step 5: Solve for x
    x = 31,400,338,771.74/202,886.20
  6. Step 6: Final answer
    x = 154,768.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.