Home / 285,500.63-428,290.27-95,975.71

Finding the Fourth Proportional to 285,500.63, 428,290.27 and 95,975.71

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Solution

The fourth proportional to 285,500.63, 428,290.27 and 95,975.71 is: 143,976.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,500.63 : 428,290.27 = 95,975.71 : x
  2. Step 2: Convert to fraction form
    285,500.63/428,290.27 = 95,975.71/x
  3. Step 3: Cross multiply
    285,500.63x = 428,290.27 × 95,975.71
  4. Step 4: Simplify right side
    285,500.63x = 41,105,461,438.68
  5. Step 5: Solve for x
    x = 41,105,461,438.68/285,500.63
  6. Step 6: Final answer
    x = 143,976.78

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1.5x scale

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.