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Finding the Fourth Proportional to 356,654.59, 492,057.23 and 203,582.36

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Solution

The fourth proportional to 356,654.59, 492,057.23 and 203,582.36 is: 280,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,654.59 : 492,057.23 = 203,582.36 : x
  2. Step 2: Convert to fraction form
    356,654.59/492,057.23 = 203,582.36/x
  3. Step 3: Cross multiply
    356,654.59x = 492,057.23 × 203,582.36
  4. Step 4: Simplify right side
    356,654.59x = 100,174,173,495.85
  5. Step 5: Solve for x
    x = 100,174,173,495.85/356,654.59
  6. Step 6: Final answer
    x = 280,871.68

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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.