Home / 261,236.91-391,860.23-74,253.27

Finding the Fourth Proportional to 261,236.91, 391,860.23 and 74,253.27

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Solution

The fourth proportional to 261,236.91, 391,860.23 and 74,253.27 is: 111,381.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,236.91 : 391,860.23 = 74,253.27 : x
  2. Step 2: Convert to fraction form
    261,236.91/391,860.23 = 74,253.27/x
  3. Step 3: Cross multiply
    261,236.91x = 391,860.23 × 74,253.27
  4. Step 4: Simplify right side
    261,236.91x = 29,096,903,089.19
  5. Step 5: Solve for x
    x = 29,096,903,089.19/261,236.91
  6. Step 6: Final answer
    x = 111,381.29

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1.5x scale

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.