Home / 205,930.30-308,567.40-152,786.20

Finding the Fourth Proportional to 205,930.30, 308,567.40 and 152,786.20

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Solution

The fourth proportional to 205,930.30, 308,567.40 and 152,786.20 is: 228,935.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,930.30 : 308,567.40 = 152,786.20 : x
  2. Step 2: Convert to fraction form
    205,930.30/308,567.40 = 152,786.20/x
  3. Step 3: Cross multiply
    205,930.30x = 308,567.40 × 152,786.20
  4. Step 4: Simplify right side
    205,930.30x = 47,144,840,489.88
  5. Step 5: Solve for x
    x = 47,144,840,489.88/205,930.30
  6. Step 6: Final answer
    x = 228,935.91

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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.