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Finding the Fourth Proportional to 242,992.68, 335,359.08 and 142,390.68

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Solution

The fourth proportional to 242,992.68, 335,359.08 and 142,390.68 is: 196,516.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,992.68 : 335,359.08 = 142,390.68 : x
  2. Step 2: Convert to fraction form
    242,992.68/335,359.08 = 142,390.68/x
  3. Step 3: Cross multiply
    242,992.68x = 335,359.08 × 142,390.68
  4. Step 4: Simplify right side
    242,992.68x = 47,752,007,445.37
  5. Step 5: Solve for x
    x = 47,752,007,445.37/242,992.68
  6. Step 6: Final answer
    x = 196,516.24

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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.