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Finding the Fourth Proportional to 242,859.64, 335,134 and 133,982.92

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Solution

The fourth proportional to 242,859.64, 335,134 and 133,982.92 is: 184,889.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,859.64 : 335,134 = 133,982.92 : x
  2. Step 2: Convert to fraction form
    242,859.64/335,134 = 133,982.92/x
  3. Step 3: Cross multiply
    242,859.64x = 335,134 × 133,982.92
  4. Step 4: Simplify right side
    242,859.64x = 44,902,231,911.28
  5. Step 5: Solve for x
    x = 44,902,231,911.28/242,859.64
  6. Step 6: Final answer
    x = 184,889.64

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1.5x scale

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.