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Finding the Fourth Proportional to 308,403.60, 462,605.40 and 223,766.70

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Solution

The fourth proportional to 308,403.60, 462,605.40 and 223,766.70 is: 335,650.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,403.60 : 462,605.40 = 223,766.70 : x
  2. Step 2: Convert to fraction form
    308,403.60/462,605.40 = 223,766.70/x
  3. Step 3: Cross multiply
    308,403.60x = 462,605.40 × 223,766.70
  4. Step 4: Simplify right side
    308,403.60x = 103,515,683,760.18
  5. Step 5: Solve for x
    x = 103,515,683,760.18/308,403.60
  6. Step 6: Final answer
    x = 335,650.05

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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.