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Finding the Fourth Proportional to 218,303.36, 301,299.90 and 136,669.58

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Solution

The fourth proportional to 218,303.36, 301,299.90 and 136,669.58 is: 188,629.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,303.36 : 301,299.90 = 136,669.58 : x
  2. Step 2: Convert to fraction form
    218,303.36/301,299.90 = 136,669.58/x
  3. Step 3: Cross multiply
    218,303.36x = 301,299.90 × 136,669.58
  4. Step 4: Simplify right side
    218,303.36x = 41,178,530,787.04
  5. Step 5: Solve for x
    x = 41,178,530,787.04/218,303.36
  6. Step 6: Final answer
    x = 188,629.85

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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.