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Finding the Fourth Proportional to 242,130.80, 363,196.20 and 211,026.80

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Solution

The fourth proportional to 242,130.80, 363,196.20 and 211,026.80 is: 316,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,130.80 : 363,196.20 = 211,026.80 : x
  2. Step 2: Convert to fraction form
    242,130.80/363,196.20 = 211,026.80/x
  3. Step 3: Cross multiply
    242,130.80x = 363,196.20 × 211,026.80
  4. Step 4: Simplify right side
    242,130.80x = 76,644,131,858.16
  5. Step 5: Solve for x
    x = 76,644,131,858.16/242,130.80
  6. Step 6: Final answer
    x = 316,540.20

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