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Finding the Fourth Proportional to 361,539.08, 498,664.86 and 238,889.40

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Solution

The fourth proportional to 361,539.08, 498,664.86 and 238,889.40 is: 329,496.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,539.08 : 498,664.86 = 238,889.40 : x
  2. Step 2: Convert to fraction form
    361,539.08/498,664.86 = 238,889.40/x
  3. Step 3: Cross multiply
    361,539.08x = 498,664.86 × 238,889.40
  4. Step 4: Simplify right side
    361,539.08x = 119,125,749,206.48
  5. Step 5: Solve for x
    x = 119,125,749,206.48/361,539.08
  6. Step 6: Final answer
    x = 329,496.19

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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.