Home / 278,529.84-417,386.52-173,028.96

Finding the Fourth Proportional to 278,529.84, 417,386.52 and 173,028.96

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Solution

The fourth proportional to 278,529.84, 417,386.52 and 173,028.96 is: 259,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,529.84 : 417,386.52 = 173,028.96 : x
  2. Step 2: Convert to fraction form
    278,529.84/417,386.52 = 173,028.96/x
  3. Step 3: Cross multiply
    278,529.84x = 417,386.52 × 173,028.96
  4. Step 4: Simplify right side
    278,529.84x = 72,219,955,473.62
  5. Step 5: Solve for x
    x = 72,219,955,473.62/278,529.84
  6. Step 6: Final answer
    x = 259,289.83

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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.