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Finding the Fourth Proportional to 242,944.86, 335,264.40 and 135,512.13

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Solution

The fourth proportional to 242,944.86, 335,264.40 and 135,512.13 is: 187,007.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,944.86 : 335,264.40 = 135,512.13 : x
  2. Step 2: Convert to fraction form
    242,944.86/335,264.40 = 135,512.13/x
  3. Step 3: Cross multiply
    242,944.86x = 335,264.40 × 135,512.13
  4. Step 4: Simplify right side
    242,944.86x = 45,432,392,957.17
  5. Step 5: Solve for x
    x = 45,432,392,957.17/242,944.86
  6. Step 6: Final answer
    x = 187,007.01

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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.