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Finding the Fourth Proportional to 243,529.74, 336,069 and 136,098.54

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Solution

The fourth proportional to 243,529.74, 336,069 and 136,098.54 is: 187,814.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,529.74 : 336,069 = 136,098.54 : x
  2. Step 2: Convert to fraction form
    243,529.74/336,069 = 136,098.54/x
  3. Step 3: Cross multiply
    243,529.74x = 336,069 × 136,098.54
  4. Step 4: Simplify right side
    243,529.74x = 45,738,500,239.26
  5. Step 5: Solve for x
    x = 45,738,500,239.26/243,529.74
  6. Step 6: Final answer
    x = 187,814.84

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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.