Home / 251,778.58-377,529.83-99,821.72

Finding the Fourth Proportional to 251,778.58, 377,529.83 and 99,821.72

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Solution

The fourth proportional to 251,778.58, 377,529.83 and 99,821.72 is: 149,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,778.58 : 377,529.83 = 99,821.72 : x
  2. Step 2: Convert to fraction form
    251,778.58/377,529.83 = 99,821.72/x
  3. Step 3: Cross multiply
    251,778.58x = 377,529.83 × 99,821.72
  4. Step 4: Simplify right side
    251,778.58x = 37,685,676,981.91
  5. Step 5: Solve for x
    x = 37,685,676,981.91/251,778.58
  6. Step 6: Final answer
    x = 149,677.85

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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.