Home / 205,514.64-308,277.43-72,364.61

Finding the Fourth Proportional to 205,514.64, 308,277.43 and 72,364.61

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Solution

The fourth proportional to 205,514.64, 308,277.43 and 72,364.61 is: 108,548.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,514.64 : 308,277.43 = 72,364.61 : x
  2. Step 2: Convert to fraction form
    205,514.64/308,277.43 = 72,364.61/x
  3. Step 3: Cross multiply
    205,514.64x = 308,277.43 × 72,364.61
  4. Step 4: Simplify right side
    205,514.64x = 22,308,376,583.53
  5. Step 5: Solve for x
    x = 22,308,376,583.53/205,514.64
  6. Step 6: Final answer
    x = 108,548.84

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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.