Home / 283,705.48-391,501.79-154,641.12

Finding the Fourth Proportional to 283,705.48, 391,501.79 and 154,641.12

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Solution

The fourth proportional to 283,705.48, 391,501.79 and 154,641.12 is: 213,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,705.48 : 391,501.79 = 154,641.12 : x
  2. Step 2: Convert to fraction form
    283,705.48/391,501.79 = 154,641.12/x
  3. Step 3: Cross multiply
    283,705.48x = 391,501.79 × 154,641.12
  4. Step 4: Simplify right side
    283,705.48x = 60,542,273,046.27
  5. Step 5: Solve for x
    x = 60,542,273,046.27/283,705.48
  6. Step 6: Final answer
    x = 213,398.32

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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.