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Finding the Fourth Proportional to 322,889.16, 484,034.76 and 142,879.17

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Solution

The fourth proportional to 322,889.16, 484,034.76 and 142,879.17 is: 214,186.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,889.16 : 484,034.76 = 142,879.17 : x
  2. Step 2: Convert to fraction form
    322,889.16/484,034.76 = 142,879.17/x
  3. Step 3: Cross multiply
    322,889.16x = 484,034.76 × 142,879.17
  4. Step 4: Simplify right side
    322,889.16x = 69,158,484,759.95
  5. Step 5: Solve for x
    x = 69,158,484,759.95/322,889.16
  6. Step 6: Final answer
    x = 214,186.46

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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.