Home / 483,215.78-666,777.40-268,326.63

Finding the Fourth Proportional to 483,215.78, 666,777.40 and 268,326.63

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Solution

The fourth proportional to 483,215.78, 666,777.40 and 268,326.63 is: 370,257.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,215.78 : 666,777.40 = 268,326.63 : x
  2. Step 2: Convert to fraction form
    483,215.78/666,777.40 = 268,326.63/x
  3. Step 3: Cross multiply
    483,215.78x = 666,777.40 × 268,326.63
  4. Step 4: Simplify right side
    483,215.78x = 178,914,132,031.35
  5. Step 5: Solve for x
    x = 178,914,132,031.35/483,215.78
  6. Step 6: Final answer
    x = 370,257.22

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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.