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Finding the Fourth Proportional to 315,270.99, 435,083.55 and 179,324.49

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Solution

The fourth proportional to 315,270.99, 435,083.55 and 179,324.49 is: 247,473.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,270.99 : 435,083.55 = 179,324.49 : x
  2. Step 2: Convert to fraction form
    315,270.99/435,083.55 = 179,324.49/x
  3. Step 3: Cross multiply
    315,270.99x = 435,083.55 × 179,324.49
  4. Step 4: Simplify right side
    315,270.99x = 78,021,135,711.14
  5. Step 5: Solve for x
    x = 78,021,135,711.14/315,270.99
  6. Step 6: Final answer
    x = 247,473.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.