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Finding the Fourth Proportional to 162,908.20, 244,070.70 and 139,580.20

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Solution

The fourth proportional to 162,908.20, 244,070.70 and 139,580.20 is: 209,120.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,908.20 : 244,070.70 = 139,580.20 : x
  2. Step 2: Convert to fraction form
    162,908.20/244,070.70 = 139,580.20/x
  3. Step 3: Cross multiply
    162,908.20x = 244,070.70 × 139,580.20
  4. Step 4: Simplify right side
    162,908.20x = 34,067,437,120.14
  5. Step 5: Solve for x
    x = 34,067,437,120.14/162,908.20
  6. Step 6: Final answer
    x = 209,120.46

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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.