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Finding the Fourth Proportional to 247,138.52, 370,709.73 and 161,821.26

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Solution

The fourth proportional to 247,138.52, 370,709.73 and 161,821.26 is: 242,733.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,138.52 : 370,709.73 = 161,821.26 : x
  2. Step 2: Convert to fraction form
    247,138.52/370,709.73 = 161,821.26/x
  3. Step 3: Cross multiply
    247,138.52x = 370,709.73 × 161,821.26
  4. Step 4: Simplify right side
    247,138.52x = 59,988,715,602.86
  5. Step 5: Solve for x
    x = 59,988,715,602.86/247,138.52
  6. Step 6: Final answer
    x = 242,733.17

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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.