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Finding the Fourth Proportional to 345,632.37, 476,739.27 and 300,231.26

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Solution

The fourth proportional to 345,632.37, 476,739.27 and 300,231.26 is: 414,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,632.37 : 476,739.27 = 300,231.26 : x
  2. Step 2: Convert to fraction form
    345,632.37/476,739.27 = 300,231.26/x
  3. Step 3: Cross multiply
    345,632.37x = 476,739.27 × 300,231.26
  4. Step 4: Simplify right side
    345,632.37x = 143,132,031,127.66
  5. Step 5: Solve for x
    x = 143,132,031,127.66/345,632.37
  6. Step 6: Final answer
    x = 414,116.40

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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.