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Finding the Fourth Proportional to 395,250.32, 545,443.44 and 213,962.60

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Solution

The fourth proportional to 395,250.32, 545,443.44 and 213,962.60 is: 295,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,250.32 : 545,443.44 = 213,962.60 : x
  2. Step 2: Convert to fraction form
    395,250.32/545,443.44 = 213,962.60/x
  3. Step 3: Cross multiply
    395,250.32x = 545,443.44 × 213,962.60
  4. Step 4: Simplify right side
    395,250.32x = 116,704,496,575.34
  5. Step 5: Solve for x
    x = 116,704,496,575.34/395,250.32
  6. Step 6: Final answer
    x = 295,267.30

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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.