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Finding the Fourth Proportional to 608,403.09, 911,961.09 and 229,159.73

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Solution

The fourth proportional to 608,403.09, 911,961.09 and 229,159.73 is: 343,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,403.09 : 911,961.09 = 229,159.73 : x
  2. Step 2: Convert to fraction form
    608,403.09/911,961.09 = 229,159.73/x
  3. Step 3: Cross multiply
    608,403.09x = 911,961.09 × 229,159.73
  4. Step 4: Simplify right side
    608,403.09x = 208,984,759,434.81
  5. Step 5: Solve for x
    x = 208,984,759,434.81/608,403.09
  6. Step 6: Final answer
    x = 343,497.20

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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.