Home / 261,364.82-391,964.09-177,662.86

Finding the Fourth Proportional to 261,364.82, 391,964.09 and 177,662.86

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Solution

The fourth proportional to 261,364.82, 391,964.09 and 177,662.86 is: 266,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,364.82 : 391,964.09 = 177,662.86 : x
  2. Step 2: Convert to fraction form
    261,364.82/391,964.09 = 177,662.86/x
  3. Step 3: Cross multiply
    261,364.82x = 391,964.09 × 177,662.86
  4. Step 4: Simplify right side
    261,364.82x = 69,637,459,378.47
  5. Step 5: Solve for x
    x = 69,637,459,378.47/261,364.82
  6. Step 6: Final answer
    x = 266,437.77

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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.