Home / 283,629.48-391,416.89-156,313.28

Finding the Fourth Proportional to 283,629.48, 391,416.89 and 156,313.28

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Solution

The fourth proportional to 283,629.48, 391,416.89 and 156,313.28 is: 215,716.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,629.48 : 391,416.89 = 156,313.28 : x
  2. Step 2: Convert to fraction form
    283,629.48/391,416.89 = 156,313.28/x
  3. Step 3: Cross multiply
    283,629.48x = 391,416.89 × 156,313.28
  4. Step 4: Simplify right side
    283,629.48x = 61,183,655,184.65
  5. Step 5: Solve for x
    x = 61,183,655,184.65/283,629.48
  6. Step 6: Final answer
    x = 215,716.84

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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.