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Finding the Fourth Proportional to 398,653.59, 550,188.68 and 226,597.39

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Solution

The fourth proportional to 398,653.59, 550,188.68 and 226,597.39 is: 312,730.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,653.59 : 550,188.68 = 226,597.39 : x
  2. Step 2: Convert to fraction form
    398,653.59/550,188.68 = 226,597.39/x
  3. Step 3: Cross multiply
    398,653.59x = 550,188.68 × 226,597.39
  4. Step 4: Simplify right side
    398,653.59x = 124,671,319,138.03
  5. Step 5: Solve for x
    x = 124,671,319,138.03/398,653.59
  6. Step 6: Final answer
    x = 312,730.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.