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Finding the Fourth Proportional to 243,333.60, 335,767.19 and 135,889.93

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Solution

The fourth proportional to 243,333.60, 335,767.19 and 135,889.93 is: 187,509.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,333.60 : 335,767.19 = 135,889.93 : x
  2. Step 2: Convert to fraction form
    243,333.60/335,767.19 = 135,889.93/x
  3. Step 3: Cross multiply
    243,333.60x = 335,767.19 × 135,889.93
  4. Step 4: Simplify right side
    243,333.60x = 45,627,379,265.95
  5. Step 5: Solve for x
    x = 45,627,379,265.95/243,333.60
  6. Step 6: Final answer
    x = 187,509.58

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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.