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Finding the Fourth Proportional to 664,329.60, 996,332.40 and 190,965.60

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Solution

The fourth proportional to 664,329.60, 996,332.40 and 190,965.60 is: 286,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,329.60 : 996,332.40 = 190,965.60 : x
  2. Step 2: Convert to fraction form
    664,329.60/996,332.40 = 190,965.60/x
  3. Step 3: Cross multiply
    664,329.60x = 996,332.40 × 190,965.60
  4. Step 4: Simplify right side
    664,329.60x = 190,265,214,565.44
  5. Step 5: Solve for x
    x = 190,265,214,565.44/664,329.60
  6. Step 6: Final answer
    x = 286,401.83

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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.