Home / 400,817.96-553,137.73-228,732.50

Finding the Fourth Proportional to 400,817.96, 553,137.73 and 228,732.50

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Solution

The fourth proportional to 400,817.96, 553,137.73 and 228,732.50 is: 315,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,817.96 : 553,137.73 = 228,732.50 : x
  2. Step 2: Convert to fraction form
    400,817.96/553,137.73 = 228,732.50/x
  3. Step 3: Cross multiply
    400,817.96x = 553,137.73 × 228,732.50
  4. Step 4: Simplify right side
    400,817.96x = 126,520,572,489.71
  5. Step 5: Solve for x
    x = 126,520,572,489.71/400,817.96
  6. Step 6: Final answer
    x = 315,655.95

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Why These Related Problems?

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