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Finding the Fourth Proportional to 285,441.36, 428,211.52 and 95,920.24

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Solution

The fourth proportional to 285,441.36, 428,211.52 and 95,920.24 is: 143,896.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,441.36 : 428,211.52 = 95,920.24 : x
  2. Step 2: Convert to fraction form
    285,441.36/428,211.52 = 95,920.24/x
  3. Step 3: Cross multiply
    285,441.36x = 428,211.52 × 95,920.24
  4. Step 4: Simplify right side
    285,441.36x = 41,074,151,769.16
  5. Step 5: Solve for x
    x = 41,074,151,769.16/285,441.36
  6. Step 6: Final answer
    x = 143,896.99

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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.