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Finding the Fourth Proportional to 172,249.56, 258,357.63 and 52,307.55

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Solution

The fourth proportional to 172,249.56, 258,357.63 and 52,307.55 is: 78,456.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,249.56 : 258,357.63 = 52,307.55 : x
  2. Step 2: Convert to fraction form
    172,249.56/258,357.63 = 52,307.55/x
  3. Step 3: Cross multiply
    172,249.56x = 258,357.63 × 52,307.55
  4. Step 4: Simplify right side
    172,249.56x = 13,514,054,649.11
  5. Step 5: Solve for x
    x = 13,514,054,649.11/172,249.56
  6. Step 6: Final answer
    x = 78,456.25

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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.