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Finding the Fourth Proportional to 491,443.50, 737,342.64 and 171,642.45

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Solution

The fourth proportional to 491,443.50, 737,342.64 and 171,642.45 is: 257,525.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,443.50 : 737,342.64 = 171,642.45 : x
  2. Step 2: Convert to fraction form
    491,443.50/737,342.64 = 171,642.45/x
  3. Step 3: Cross multiply
    491,443.50x = 737,342.64 × 171,642.45
  4. Step 4: Simplify right side
    491,443.50x = 126,559,297,219.07
  5. Step 5: Solve for x
    x = 126,559,297,219.07/491,443.50
  6. Step 6: Final answer
    x = 257,525.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.