Home / 285,890.41-428,294.33-190,833.98

Finding the Fourth Proportional to 285,890.41, 428,294.33 and 190,833.98

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Solution

The fourth proportional to 285,890.41, 428,294.33 and 190,833.98 is: 285,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,890.41 : 428,294.33 = 190,833.98 : x
  2. Step 2: Convert to fraction form
    285,890.41/428,294.33 = 190,833.98/x
  3. Step 3: Cross multiply
    285,890.41x = 428,294.33 × 190,833.98
  4. Step 4: Simplify right side
    285,890.41x = 81,733,110,298.76
  5. Step 5: Solve for x
    x = 81,733,110,298.76/285,890.41
  6. Step 6: Final answer
    x = 285,889.65

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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.