Home / 285,815.22-428,739.66-96,259.74

Finding the Fourth Proportional to 285,815.22, 428,739.66 and 96,259.74

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Solution

The fourth proportional to 285,815.22, 428,739.66 and 96,259.74 is: 144,395.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,815.22 : 428,739.66 = 96,259.74 : x
  2. Step 2: Convert to fraction form
    285,815.22/428,739.66 = 96,259.74/x
  3. Step 3: Cross multiply
    285,815.22x = 428,739.66 × 96,259.74
  4. Step 4: Simplify right side
    285,815.22x = 41,270,368,199.29
  5. Step 5: Solve for x
    x = 41,270,368,199.29/285,815.22
  6. Step 6: Final answer
    x = 144,395.28

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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.