Home / 285,891.54-428,296.02-190,835.10

Finding the Fourth Proportional to 285,891.54, 428,296.02 and 190,835.10

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Solution

The fourth proportional to 285,891.54, 428,296.02 and 190,835.10 is: 285,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,891.54 : 428,296.02 = 190,835.10 : x
  2. Step 2: Convert to fraction form
    285,891.54/428,296.02 = 190,835.10/x
  3. Step 3: Cross multiply
    285,891.54x = 428,296.02 × 190,835.10
  4. Step 4: Simplify right side
    285,891.54x = 81,733,913,806.30
  5. Step 5: Solve for x
    x = 81,733,913,806.30/285,891.54
  6. Step 6: Final answer
    x = 285,891.34

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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.