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Finding the Fourth Proportional to 254,514.69, 351,234.49 and 139,803.94

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Solution

The fourth proportional to 254,514.69, 351,234.49 and 139,803.94 is: 192,931.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,514.69 : 351,234.49 = 139,803.94 : x
  2. Step 2: Convert to fraction form
    254,514.69/351,234.49 = 139,803.94/x
  3. Step 3: Cross multiply
    254,514.69x = 351,234.49 × 139,803.94
  4. Step 4: Simplify right side
    254,514.69x = 49,103,965,565.89
  5. Step 5: Solve for x
    x = 49,103,965,565.89/254,514.69
  6. Step 6: Final answer
    x = 192,931.75

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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.