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Finding the Fourth Proportional to 335,857.60, 503,668.80 and 99,137.60

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Solution

The fourth proportional to 335,857.60, 503,668.80 and 99,137.60 is: 148,671.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,857.60 : 503,668.80 = 99,137.60 : x
  2. Step 2: Convert to fraction form
    335,857.60/503,668.80 = 99,137.60/x
  3. Step 3: Cross multiply
    335,857.60x = 503,668.80 × 99,137.60
  4. Step 4: Simplify right side
    335,857.60x = 49,932,516,026.88
  5. Step 5: Solve for x
    x = 49,932,516,026.88/335,857.60
  6. Step 6: Final answer
    x = 148,671.69

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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.