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Finding the Fourth Proportional to 218,703.38, 301,810.66 and 118,101.38

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Solution

The fourth proportional to 218,703.38, 301,810.66 and 118,101.38 is: 162,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,703.38 : 301,810.66 = 118,101.38 : x
  2. Step 2: Convert to fraction form
    218,703.38/301,810.66 = 118,101.38/x
  3. Step 3: Cross multiply
    218,703.38x = 301,810.66 × 118,101.38
  4. Step 4: Simplify right side
    218,703.38x = 35,644,253,640.40
  5. Step 5: Solve for x
    x = 35,644,253,640.40/218,703.38
  6. Step 6: Final answer
    x = 162,979.90

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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.