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Finding the Fourth Proportional to 395,353.36, 545,045.32 and 250,086.88

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Solution

The fourth proportional to 395,353.36, 545,045.32 and 250,086.88 is: 344,776.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,353.36 : 545,045.32 = 250,086.88 : x
  2. Step 2: Convert to fraction form
    395,353.36/545,045.32 = 250,086.88/x
  3. Step 3: Cross multiply
    395,353.36x = 545,045.32 × 250,086.88
  4. Step 4: Simplify right side
    395,353.36x = 136,308,683,537.40
  5. Step 5: Solve for x
    x = 136,308,683,537.40/395,353.36
  6. Step 6: Final answer
    x = 344,776.84

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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.