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Finding the Fourth Proportional to 218,154.37, 300,804.81 and 153,602.97

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Solution

The fourth proportional to 218,154.37, 300,804.81 and 153,602.97 is: 211,797.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,154.37 : 300,804.81 = 153,602.97 : x
  2. Step 2: Convert to fraction form
    218,154.37/300,804.81 = 153,602.97/x
  3. Step 3: Cross multiply
    218,154.37x = 300,804.81 × 153,602.97
  4. Step 4: Simplify right side
    218,154.37x = 46,204,512,644.30
  5. Step 5: Solve for x
    x = 46,204,512,644.30/218,154.37
  6. Step 6: Final answer
    x = 211,797.33

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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.