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Finding the Fourth Proportional to 300,000.86, 414,105.36 and 172,727.18

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Solution

The fourth proportional to 300,000.86, 414,105.36 and 172,727.18 is: 238,423.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,000.86 : 414,105.36 = 172,727.18 : x
  2. Step 2: Convert to fraction form
    300,000.86/414,105.36 = 172,727.18/x
  3. Step 3: Cross multiply
    300,000.86x = 414,105.36 × 172,727.18
  4. Step 4: Simplify right side
    300,000.86x = 71,527,251,055.68
  5. Step 5: Solve for x
    x = 71,527,251,055.68/300,000.86
  6. Step 6: Final answer
    x = 238,423.49

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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.