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Finding the Fourth Proportional to 243,462.61, 335,995.78 and 134,564.61

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Solution

The fourth proportional to 243,462.61, 335,995.78 and 134,564.61 is: 185,708.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,462.61 : 335,995.78 = 134,564.61 : x
  2. Step 2: Convert to fraction form
    243,462.61/335,995.78 = 134,564.61/x
  3. Step 3: Cross multiply
    243,462.61x = 335,995.78 × 134,564.61
  4. Step 4: Simplify right side
    243,462.61x = 45,213,141,097.35
  5. Step 5: Solve for x
    x = 45,213,141,097.35/243,462.61
  6. Step 6: Final answer
    x = 185,708.77

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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.