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Finding the Fourth Proportional to 391,362.60, 587,037.60 and 154,707.48

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Solution

The fourth proportional to 391,362.60, 587,037.60 and 154,707.48 is: 232,058.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,362.60 : 587,037.60 = 154,707.48 : x
  2. Step 2: Convert to fraction form
    391,362.60/587,037.60 = 154,707.48/x
  3. Step 3: Cross multiply
    391,362.60x = 587,037.60 × 154,707.48
  4. Step 4: Simplify right side
    391,362.60x = 90,819,107,761.25
  5. Step 5: Solve for x
    x = 90,819,107,761.25/391,362.60
  6. Step 6: Final answer
    x = 232,058.73

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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.