Home / 286,811.76-395,809.83-157,755.69

Finding the Fourth Proportional to 286,811.76, 395,809.83 and 157,755.69

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Solution

The fourth proportional to 286,811.76, 395,809.83 and 157,755.69 is: 217,708.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,811.76 : 395,809.83 = 157,755.69 : x
  2. Step 2: Convert to fraction form
    286,811.76/395,809.83 = 157,755.69/x
  3. Step 3: Cross multiply
    286,811.76x = 395,809.83 × 157,755.69
  4. Step 4: Simplify right side
    286,811.76x = 62,441,252,840.43
  5. Step 5: Solve for x
    x = 62,441,252,840.43/286,811.76
  6. Step 6: Final answer
    x = 217,708.13

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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.