Home / 283,515.40-391,391.22-193,339.72

Finding the Fourth Proportional to 283,515.40, 391,391.22 and 193,339.72

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Solution

The fourth proportional to 283,515.40, 391,391.22 and 193,339.72 is: 266,904.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,515.40 : 391,391.22 = 193,339.72 : x
  2. Step 2: Convert to fraction form
    283,515.40/391,391.22 = 193,339.72/x
  3. Step 3: Cross multiply
    283,515.40x = 391,391.22 × 193,339.72
  4. Step 4: Simplify right side
    283,515.40x = 75,671,468,885.26
  5. Step 5: Solve for x
    x = 75,671,468,885.26/283,515.40
  6. Step 6: Final answer
    x = 266,904.26

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1.5x scale

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.