Home / 391,736.15-587,656.54-155,023.51

Finding the Fourth Proportional to 391,736.15, 587,656.54 and 155,023.51

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Solution

The fourth proportional to 391,736.15, 587,656.54 and 155,023.51 is: 232,555.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,736.15 : 587,656.54 = 155,023.51 : x
  2. Step 2: Convert to fraction form
    391,736.15/587,656.54 = 155,023.51/x
  3. Step 3: Cross multiply
    391,736.15x = 587,656.54 × 155,023.51
  4. Step 4: Simplify right side
    391,736.15x = 91,100,579,505.26
  5. Step 5: Solve for x
    x = 91,100,579,505.26/391,736.15
  6. Step 6: Final answer
    x = 232,555.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.