Home / 285,190.61-428,206.43-159,077.25

Finding the Fourth Proportional to 285,190.61, 428,206.43 and 159,077.25

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Solution

The fourth proportional to 285,190.61, 428,206.43 and 159,077.25 is: 238,850.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,190.61 : 428,206.43 = 159,077.25 : x
  2. Step 2: Convert to fraction form
    285,190.61/428,206.43 = 159,077.25/x
  3. Step 3: Cross multiply
    285,190.61x = 428,206.43 × 159,077.25
  4. Step 4: Simplify right side
    285,190.61x = 68,117,901,714.41
  5. Step 5: Solve for x
    x = 68,117,901,714.41/285,190.61
  6. Step 6: Final answer
    x = 238,850.44

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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.