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Finding the Fourth Proportional to 300,058.28, 414,119.59 and 172,739.24

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Solution

The fourth proportional to 300,058.28, 414,119.59 and 172,739.24 is: 238,402.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,058.28 : 414,119.59 = 172,739.24 : x
  2. Step 2: Convert to fraction form
    300,058.28/414,119.59 = 172,739.24/x
  3. Step 3: Cross multiply
    300,058.28x = 414,119.59 × 172,739.24
  4. Step 4: Simplify right side
    300,058.28x = 71,534,700,743.27
  5. Step 5: Solve for x
    x = 71,534,700,743.27/300,058.28
  6. Step 6: Final answer
    x = 238,402.69

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1.5x scale

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.