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Finding the Fourth Proportional to 172,153.35, 258,244.90 and 47,494.35

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Solution

The fourth proportional to 172,153.35, 258,244.90 and 47,494.35 is: 71,245.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,153.35 : 258,244.90 = 47,494.35 : x
  2. Step 2: Convert to fraction form
    172,153.35/258,244.90 = 47,494.35/x
  3. Step 3: Cross multiply
    172,153.35x = 258,244.90 × 47,494.35
  4. Step 4: Simplify right side
    172,153.35x = 12,265,173,666.32
  5. Step 5: Solve for x
    x = 12,265,173,666.32/172,153.35
  6. Step 6: Final answer
    x = 71,245.63

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1.5x scale

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.