Home / 285,891.41-428,295.83-190,834.98

Finding the Fourth Proportional to 285,891.41, 428,295.83 and 190,834.98

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Solution

The fourth proportional to 285,891.41, 428,295.83 and 190,834.98 is: 285,891.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,891.41 : 428,295.83 = 190,834.98 : x
  2. Step 2: Convert to fraction form
    285,891.41/428,295.83 = 190,834.98/x
  3. Step 3: Cross multiply
    285,891.41x = 428,295.83 × 190,834.98
  4. Step 4: Simplify right side
    285,891.41x = 81,733,826,152.13
  5. Step 5: Solve for x
    x = 81,733,826,152.13/285,891.41
  6. Step 6: Final answer
    x = 285,891.16

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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.