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Finding the Fourth Proportional to 418,027.52, 626,843.64 and 161,980.04

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Solution

The fourth proportional to 418,027.52, 626,843.64 and 161,980.04 is: 242,893.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,027.52 : 626,843.64 = 161,980.04 : x
  2. Step 2: Convert to fraction form
    418,027.52/626,843.64 = 161,980.04/x
  3. Step 3: Cross multiply
    418,027.52x = 626,843.64 × 161,980.04
  4. Step 4: Simplify right side
    418,027.52x = 101,536,157,880.95
  5. Step 5: Solve for x
    x = 101,536,157,880.95/418,027.52
  6. Step 6: Final answer
    x = 242,893.48

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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.