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Finding the Fourth Proportional to 243,250.74, 364,727.07 and 85,497.30

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Solution

The fourth proportional to 243,250.74, 364,727.07 and 85,497.30 is: 128,193.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,250.74 : 364,727.07 = 85,497.30 : x
  2. Step 2: Convert to fraction form
    243,250.74/364,727.07 = 85,497.30/x
  3. Step 3: Cross multiply
    243,250.74x = 364,727.07 × 85,497.30
  4. Step 4: Simplify right side
    243,250.74x = 31,183,179,721.91
  5. Step 5: Solve for x
    x = 31,183,179,721.91/243,250.74
  6. Step 6: Final answer
    x = 128,193.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.