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Finding the Fourth Proportional to 391,501.04, 587,290.44 and 125,194.64

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Solution

The fourth proportional to 391,501.04, 587,290.44 and 125,194.64 is: 187,804.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,501.04 : 587,290.44 = 125,194.64 : x
  2. Step 2: Convert to fraction form
    391,501.04/587,290.44 = 125,194.64/x
  3. Step 3: Cross multiply
    391,501.04x = 587,290.44 × 125,194.64
  4. Step 4: Simplify right side
    391,501.04x = 73,525,615,211.24
  5. Step 5: Solve for x
    x = 73,525,615,211.24/391,501.04
  6. Step 6: Final answer
    x = 187,804.39

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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.