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Finding the Fourth Proportional to 356,893.03, 492,553.53 and 213,653.03

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Solution

The fourth proportional to 356,893.03, 492,553.53 and 213,653.03 is: 294,865.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,893.03 : 492,553.53 = 213,653.03 : x
  2. Step 2: Convert to fraction form
    356,893.03/492,553.53 = 213,653.03/x
  3. Step 3: Cross multiply
    356,893.03x = 492,553.53 × 213,653.03
  4. Step 4: Simplify right side
    356,893.03x = 105,235,555,353.08
  5. Step 5: Solve for x
    x = 105,235,555,353.08/356,893.03
  6. Step 6: Final answer
    x = 294,865.82

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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.