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Finding the Fourth Proportional to 252,763.91, 379,018.89 and 84,225.18

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Solution

The fourth proportional to 252,763.91, 379,018.89 and 84,225.18 is: 126,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,763.91 : 379,018.89 = 84,225.18 : x
  2. Step 2: Convert to fraction form
    252,763.91/379,018.89 = 84,225.18/x
  3. Step 3: Cross multiply
    252,763.91x = 379,018.89 × 84,225.18
  4. Step 4: Simplify right side
    252,763.91x = 31,922,934,233.65
  5. Step 5: Solve for x
    x = 31,922,934,233.65/252,763.91
  6. Step 6: Final answer
    x = 126,295.46

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1.5x scale

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.