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Finding the Fourth Proportional to 236,978.46, 325,289.52 and 209,519.46

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Solution

The fourth proportional to 236,978.46, 325,289.52 and 209,519.46 is: 287,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,978.46 : 325,289.52 = 209,519.46 : x
  2. Step 2: Convert to fraction form
    236,978.46/325,289.52 = 209,519.46/x
  3. Step 3: Cross multiply
    236,978.46x = 325,289.52 × 209,519.46
  4. Step 4: Simplify right side
    236,978.46x = 68,154,484,574.06
  5. Step 5: Solve for x
    x = 68,154,484,574.06/236,978.46
  6. Step 6: Final answer
    x = 287,597.80

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.