Home / 280,942.41-421,325.77-93,910.17

Finding the Fourth Proportional to 280,942.41, 421,325.77 and 93,910.17

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Solution

The fourth proportional to 280,942.41, 421,325.77 and 93,910.17 is: 140,835.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,942.41 : 421,325.77 = 93,910.17 : x
  2. Step 2: Convert to fraction form
    280,942.41/421,325.77 = 93,910.17/x
  3. Step 3: Cross multiply
    280,942.41x = 421,325.77 × 93,910.17
  4. Step 4: Simplify right side
    280,942.41x = 39,566,774,686.08
  5. Step 5: Solve for x
    x = 39,566,774,686.08/280,942.41
  6. Step 6: Final answer
    x = 140,835.89

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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.