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Finding the Fourth Proportional to 326,957.72, 490,374.81 and 102,284.37

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Solution

The fourth proportional to 326,957.72, 490,374.81 and 102,284.37 is: 153,407.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,957.72 : 490,374.81 = 102,284.37 : x
  2. Step 2: Convert to fraction form
    326,957.72/490,374.81 = 102,284.37/x
  3. Step 3: Cross multiply
    326,957.72x = 490,374.81 × 102,284.37
  4. Step 4: Simplify right side
    326,957.72x = 50,157,678,504.72
  5. Step 5: Solve for x
    x = 50,157,678,504.72/326,957.72
  6. Step 6: Final answer
    x = 153,407.23

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Why These Related Problems?

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