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Finding the Fourth Proportional to 305,298.49, 457,369.69 and 203,790.46

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Solution

The fourth proportional to 305,298.49, 457,369.69 and 203,790.46 is: 305,299.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,298.49 : 457,369.69 = 203,790.46 : x
  2. Step 2: Convert to fraction form
    305,298.49/457,369.69 = 203,790.46/x
  3. Step 3: Cross multiply
    305,298.49x = 457,369.69 × 203,790.46
  4. Step 4: Simplify right side
    305,298.49x = 93,207,579,515.16
  5. Step 5: Solve for x
    x = 93,207,579,515.16/305,298.49
  6. Step 6: Final answer
    x = 305,299.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.