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Finding the Fourth Proportional to 285,910.60, 428,756.40 and 96,320.02

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Solution

The fourth proportional to 285,910.60, 428,756.40 and 96,320.02 is: 144,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,910.60 : 428,756.40 = 96,320.02 : x
  2. Step 2: Convert to fraction form
    285,910.60/428,756.40 = 96,320.02/x
  3. Step 3: Cross multiply
    285,910.60x = 428,756.40 × 96,320.02
  4. Step 4: Simplify right side
    285,910.60x = 41,297,825,023.13
  5. Step 5: Solve for x
    x = 41,297,825,023.13/285,910.60
  6. Step 6: Final answer
    x = 144,443.14

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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.