Home / 278,042.21-417,095.75-100,632.77

Finding the Fourth Proportional to 278,042.21, 417,095.75 and 100,632.77

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Solution

The fourth proportional to 278,042.21, 417,095.75 and 100,632.77 is: 150,960.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,042.21 : 417,095.75 = 100,632.77 : x
  2. Step 2: Convert to fraction form
    278,042.21/417,095.75 = 100,632.77/x
  3. Step 3: Cross multiply
    278,042.21x = 417,095.75 × 100,632.77
  4. Step 4: Simplify right side
    278,042.21x = 41,973,500,677.73
  5. Step 5: Solve for x
    x = 41,973,500,677.73/278,042.21
  6. Step 6: Final answer
    x = 150,960.89

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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.