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Finding the Fourth Proportional to 218,274.10, 301,259.58 and 136,640.34

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Solution

The fourth proportional to 218,274.10, 301,259.58 and 136,640.34 is: 188,589.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,274.10 : 301,259.58 = 136,640.34 : x
  2. Step 2: Convert to fraction form
    218,274.10/301,259.58 = 136,640.34/x
  3. Step 3: Cross multiply
    218,274.10x = 301,259.58 × 136,640.34
  4. Step 4: Simplify right side
    218,274.10x = 41,164,211,439.46
  5. Step 5: Solve for x
    x = 41,164,211,439.46/218,274.10
  6. Step 6: Final answer
    x = 188,589.54

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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.