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Finding the Fourth Proportional to 395,343.36, 545,031.56 and 250,076.88

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Solution

The fourth proportional to 395,343.36, 545,031.56 and 250,076.88 is: 344,763.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,343.36 : 545,031.56 = 250,076.88 : x
  2. Step 2: Convert to fraction form
    395,343.36/545,031.56 = 250,076.88/x
  3. Step 3: Cross multiply
    395,343.36x = 545,031.56 × 250,076.88
  4. Step 4: Simplify right side
    395,343.36x = 136,299,792,026.33
  5. Step 5: Solve for x
    x = 136,299,792,026.33/395,343.36
  6. Step 6: Final answer
    x = 344,763.07

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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.