Home / 205,922.21-308,888.71-70,984.85

Finding the Fourth Proportional to 205,922.21, 308,888.71 and 70,984.85

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Solution

The fourth proportional to 205,922.21, 308,888.71 and 70,984.85 is: 106,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,922.21 : 308,888.71 = 70,984.85 : x
  2. Step 2: Convert to fraction form
    205,922.21/308,888.71 = 70,984.85/x
  3. Step 3: Cross multiply
    205,922.21x = 308,888.71 × 70,984.85
  4. Step 4: Simplify right side
    205,922.21x = 21,926,417,024.14
  5. Step 5: Solve for x
    x = 21,926,417,024.14/205,922.21
  6. Step 6: Final answer
    x = 106,479.13

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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.