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Finding the Fourth Proportional to 225,518.94, 311,212.62 and 123,543.54

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Solution

The fourth proportional to 225,518.94, 311,212.62 and 123,543.54 is: 170,488.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,518.94 : 311,212.62 = 123,543.54 : x
  2. Step 2: Convert to fraction form
    225,518.94/311,212.62 = 123,543.54/x
  3. Step 3: Cross multiply
    225,518.94x = 311,212.62 × 123,543.54
  4. Step 4: Simplify right side
    225,518.94x = 38,448,308,767.47
  5. Step 5: Solve for x
    x = 38,448,308,767.47/225,518.94
  6. Step 6: Final answer
    x = 170,488.16

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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.