Home / 285,899.24-428,307.54-190,842.80

Finding the Fourth Proportional to 285,899.24, 428,307.54 and 190,842.80

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Solution

The fourth proportional to 285,899.24, 428,307.54 and 190,842.80 is: 285,902.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,899.24 : 428,307.54 = 190,842.80 : x
  2. Step 2: Convert to fraction form
    285,899.24/428,307.54 = 190,842.80/x
  3. Step 3: Cross multiply
    285,899.24x = 428,307.54 × 190,842.80
  4. Step 4: Simplify right side
    285,899.24x = 81,739,408,053.17
  5. Step 5: Solve for x
    x = 81,739,408,053.17/285,899.24
  6. Step 6: Final answer
    x = 285,902.86

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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.