Home / 315,043.17-471,553.20-165,069.60

Finding the Fourth Proportional to 315,043.17, 471,553.20 and 165,069.60

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Solution

The fourth proportional to 315,043.17, 471,553.20 and 165,069.60 is: 247,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,043.17 : 471,553.20 = 165,069.60 : x
  2. Step 2: Convert to fraction form
    315,043.17/471,553.20 = 165,069.60/x
  3. Step 3: Cross multiply
    315,043.17x = 471,553.20 × 165,069.60
  4. Step 4: Simplify right side
    315,043.17x = 77,839,098,102.72
  5. Step 5: Solve for x
    x = 77,839,098,102.72/315,043.17
  6. Step 6: Final answer
    x = 247,074.39

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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.