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Finding the Fourth Proportional to 218,029.12, 300,656.16 and 182,205.76

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Solution

The fourth proportional to 218,029.12, 300,656.16 and 182,205.76 is: 251,256.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,029.12 : 300,656.16 = 182,205.76 : x
  2. Step 2: Convert to fraction form
    218,029.12/300,656.16 = 182,205.76/x
  3. Step 3: Cross multiply
    218,029.12x = 300,656.16 × 182,205.76
  4. Step 4: Simplify right side
    218,029.12x = 54,781,284,131.48
  5. Step 5: Solve for x
    x = 54,781,284,131.48/218,029.12
  6. Step 6: Final answer
    x = 251,256.73

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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.