Home / 283,623.69-391,382.13-156,299.25

Finding the Fourth Proportional to 283,623.69, 391,382.13 and 156,299.25

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Solution

The fourth proportional to 283,623.69, 391,382.13 and 156,299.25 is: 215,682.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,623.69 : 391,382.13 = 156,299.25 : x
  2. Step 2: Convert to fraction form
    283,623.69/391,382.13 = 156,299.25/x
  3. Step 3: Cross multiply
    283,623.69x = 391,382.13 × 156,299.25
  4. Step 4: Simplify right side
    283,623.69x = 61,172,733,382.40
  5. Step 5: Solve for x
    x = 61,172,733,382.40/283,623.69
  6. Step 6: Final answer
    x = 215,682.74

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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.