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Finding the Fourth Proportional to 218,161.44, 300,814.56 and 153,610.05

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Solution

The fourth proportional to 218,161.44, 300,814.56 and 153,610.05 is: 211,807.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,161.44 : 300,814.56 = 153,610.05 : x
  2. Step 2: Convert to fraction form
    218,161.44/300,814.56 = 153,610.05/x
  3. Step 3: Cross multiply
    218,161.44x = 300,814.56 × 153,610.05
  4. Step 4: Simplify right side
    218,161.44x = 46,208,139,602.33
  5. Step 5: Solve for x
    x = 46,208,139,602.33/218,161.44
  6. Step 6: Final answer
    x = 211,807.09

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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.