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Finding the Fourth Proportional to 242,607.30, 363,959.55 and 203,435.70

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Solution

The fourth proportional to 242,607.30, 363,959.55 and 203,435.70 is: 305,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,607.30 : 363,959.55 = 203,435.70 : x
  2. Step 2: Convert to fraction form
    242,607.30/363,959.55 = 203,435.70/x
  3. Step 3: Cross multiply
    242,607.30x = 363,959.55 × 203,435.70
  4. Step 4: Simplify right side
    242,607.30x = 74,042,365,825.94
  5. Step 5: Solve for x
    x = 74,042,365,825.94/242,607.30
  6. Step 6: Final answer
    x = 305,194.30

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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.