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Finding the Fourth Proportional to 252,950.68, 349,078.98 and 139,780.72

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Solution

The fourth proportional to 252,950.68, 349,078.98 and 139,780.72 is: 192,901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,950.68 : 349,078.98 = 139,780.72 : x
  2. Step 2: Convert to fraction form
    252,950.68/349,078.98 = 139,780.72/x
  3. Step 3: Cross multiply
    252,950.68x = 349,078.98 × 139,780.72
  4. Step 4: Simplify right side
    252,950.68x = 48,794,511,161.27
  5. Step 5: Solve for x
    x = 48,794,511,161.27/252,950.68
  6. Step 6: Final answer
    x = 192,901.28

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1.5x scale

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.