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Finding the Fourth Proportional to 285,675.36, 428,491.28 and 108,166.24

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Solution

The fourth proportional to 285,675.36, 428,491.28 and 108,166.24 is: 162,241.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,675.36 : 428,491.28 = 108,166.24 : x
  2. Step 2: Convert to fraction form
    285,675.36/428,491.28 = 108,166.24/x
  3. Step 3: Cross multiply
    285,675.36x = 428,491.28 × 108,166.24
  4. Step 4: Simplify right side
    285,675.36x = 46,348,290,630.39
  5. Step 5: Solve for x
    x = 46,348,290,630.39/285,675.36
  6. Step 6: Final answer
    x = 162,241.12

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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.