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Finding the Fourth Proportional to 243,360.25, 335,839.72 and 134,461.88

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Solution

The fourth proportional to 243,360.25, 335,839.72 and 134,461.88 is: 185,558.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,360.25 : 335,839.72 = 134,461.88 : x
  2. Step 2: Convert to fraction form
    243,360.25/335,839.72 = 134,461.88/x
  3. Step 3: Cross multiply
    243,360.25x = 335,839.72 × 134,461.88
  4. Step 4: Simplify right side
    243,360.25x = 45,157,640,129.87
  5. Step 5: Solve for x
    x = 45,157,640,129.87/243,360.25
  6. Step 6: Final answer
    x = 185,558.82

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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.