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Finding the Fourth Proportional to 315,234.90, 435,006.99 and 179,250.48

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Solution

The fourth proportional to 315,234.90, 435,006.99 and 179,250.48 is: 247,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,234.90 : 435,006.99 = 179,250.48 : x
  2. Step 2: Convert to fraction form
    315,234.90/435,006.99 = 179,250.48/x
  3. Step 3: Cross multiply
    315,234.90x = 435,006.99 × 179,250.48
  4. Step 4: Simplify right side
    315,234.90x = 77,975,211,760.86
  5. Step 5: Solve for x
    x = 77,975,211,760.86/315,234.90
  6. Step 6: Final answer
    x = 247,355.90

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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.