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Finding the Fourth Proportional to 242,593.30, 363,938.55 and 203,421.70

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Solution

The fourth proportional to 242,593.30, 363,938.55 and 203,421.70 is: 305,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,593.30 : 363,938.55 = 203,421.70 : x
  2. Step 2: Convert to fraction form
    242,593.30/363,938.55 = 203,421.70/x
  3. Step 3: Cross multiply
    242,593.30x = 363,938.55 × 203,421.70
  4. Step 4: Simplify right side
    242,593.30x = 74,032,998,536.54
  5. Step 5: Solve for x
    x = 74,032,998,536.54/242,593.30
  6. Step 6: Final answer
    x = 305,173.30

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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.