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Finding the Fourth Proportional to 349,169.60, 523,408.80 and 171,531.20

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Solution

The fourth proportional to 349,169.60, 523,408.80 and 171,531.20 is: 257,127.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,169.60 : 523,408.80 = 171,531.20 : x
  2. Step 2: Convert to fraction form
    349,169.60/523,408.80 = 171,531.20/x
  3. Step 3: Cross multiply
    349,169.60x = 523,408.80 × 171,531.20
  4. Step 4: Simplify right side
    349,169.60x = 89,780,939,554.56
  5. Step 5: Solve for x
    x = 89,780,939,554.56/349,169.60
  6. Step 6: Final answer
    x = 257,127.02

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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.