Home / 286,227.60-394,722.08-208,632.72

Finding the Fourth Proportional to 286,227.60, 394,722.08 and 208,632.72

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Solution

The fourth proportional to 286,227.60, 394,722.08 and 208,632.72 is: 287,714.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,227.60 : 394,722.08 = 208,632.72 : x
  2. Step 2: Convert to fraction form
    286,227.60/394,722.08 = 208,632.72/x
  3. Step 3: Cross multiply
    286,227.60x = 394,722.08 × 208,632.72
  4. Step 4: Simplify right side
    286,227.60x = 82,351,941,194.46
  5. Step 5: Solve for x
    x = 82,351,941,194.46/286,227.60
  6. Step 6: Final answer
    x = 287,714.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.