Home / 258,048.60-386,996.10-100,186.20

Finding the Fourth Proportional to 258,048.60, 386,996.10 and 100,186.20

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Solution

The fourth proportional to 258,048.60, 386,996.10 and 100,186.20 is: 150,249.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,048.60 : 386,996.10 = 100,186.20 : x
  2. Step 2: Convert to fraction form
    258,048.60/386,996.10 = 100,186.20/x
  3. Step 3: Cross multiply
    258,048.60x = 386,996.10 × 100,186.20
  4. Step 4: Simplify right side
    258,048.60x = 38,771,668,673.82
  5. Step 5: Solve for x
    x = 38,771,668,673.82/258,048.60
  6. Step 6: Final answer
    x = 150,249.48

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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.