Home / 399,127.77-550,796.09-229,361.49

Finding the Fourth Proportional to 399,127.77, 550,796.09 and 229,361.49

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Solution

The fourth proportional to 399,127.77, 550,796.09 and 229,361.49 is: 316,518.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,127.77 : 550,796.09 = 229,361.49 : x
  2. Step 2: Convert to fraction form
    399,127.77/550,796.09 = 229,361.49/x
  3. Step 3: Cross multiply
    399,127.77x = 550,796.09 × 229,361.49
  4. Step 4: Simplify right side
    399,127.77x = 126,331,410,741.77
  5. Step 5: Solve for x
    x = 126,331,410,741.77/399,127.77
  6. Step 6: Final answer
    x = 316,518.72

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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.