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Finding the Fourth Proportional to 242,910.80, 364,207.80 and 218,027.60

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Solution

The fourth proportional to 242,910.80, 364,207.80 and 218,027.60 is: 326,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,910.80 : 364,207.80 = 218,027.60 : x
  2. Step 2: Convert to fraction form
    242,910.80/364,207.80 = 218,027.60/x
  3. Step 3: Cross multiply
    242,910.80x = 364,207.80 × 218,027.60
  4. Step 4: Simplify right side
    242,910.80x = 79,407,352,535.28
  5. Step 5: Solve for x
    x = 79,407,352,535.28/242,910.80
  6. Step 6: Final answer
    x = 326,899.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.