Home / 283,705.41-391,501.69-154,641.05

Finding the Fourth Proportional to 283,705.41, 391,501.69 and 154,641.05

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Solution

The fourth proportional to 283,705.41, 391,501.69 and 154,641.05 is: 213,398.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,705.41 : 391,501.69 = 154,641.05 : x
  2. Step 2: Convert to fraction form
    283,705.41/391,501.69 = 154,641.05/x
  3. Step 3: Cross multiply
    283,705.41x = 391,501.69 × 154,641.05
  4. Step 4: Simplify right side
    283,705.41x = 60,542,230,074.26
  5. Step 5: Solve for x
    x = 60,542,230,074.26/283,705.41
  6. Step 6: Final answer
    x = 213,398.22

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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.