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Finding the Fourth Proportional to 539,145.90, 808,580.41 and 159,976.94

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Solution

The fourth proportional to 539,145.90, 808,580.41 and 159,976.94 is: 239,924.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,145.90 : 808,580.41 = 159,976.94 : x
  2. Step 2: Convert to fraction form
    539,145.90/808,580.41 = 159,976.94/x
  3. Step 3: Cross multiply
    539,145.90x = 808,580.41 × 159,976.94
  4. Step 4: Simplify right side
    539,145.90x = 129,354,215,292.90
  5. Step 5: Solve for x
    x = 129,354,215,292.90/539,145.90
  6. Step 6: Final answer
    x = 239,924.32

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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.