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Finding the Fourth Proportional to 226,698.88, 312,839.40 and 131,203.66

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Solution

The fourth proportional to 226,698.88, 312,839.40 and 131,203.66 is: 181,058.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,698.88 : 312,839.40 = 131,203.66 : x
  2. Step 2: Convert to fraction form
    226,698.88/312,839.40 = 131,203.66/x
  3. Step 3: Cross multiply
    226,698.88x = 312,839.40 × 131,203.66
  4. Step 4: Simplify right side
    226,698.88x = 41,045,674,272.20
  5. Step 5: Solve for x
    x = 41,045,674,272.20/226,698.88
  6. Step 6: Final answer
    x = 181,058.13

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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.