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Finding the Fourth Proportional to 300,001.86, 414,106.74 and 172,728.18

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Solution

The fourth proportional to 300,001.86, 414,106.74 and 172,728.18 is: 238,424.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,001.86 : 414,106.74 = 172,728.18 : x
  2. Step 2: Convert to fraction form
    300,001.86/414,106.74 = 172,728.18/x
  3. Step 3: Cross multiply
    300,001.86x = 414,106.74 × 172,728.18
  4. Step 4: Simplify right side
    300,001.86x = 71,527,903,525.93
  5. Step 5: Solve for x
    x = 71,527,903,525.93/300,001.86
  6. Step 6: Final answer
    x = 238,424.87

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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.