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Finding the Fourth Proportional to 243,376.94, 365,100.02 and 74,911.31

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Solution

The fourth proportional to 243,376.94, 365,100.02 and 74,911.31 is: 112,377.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,376.94 : 365,100.02 = 74,911.31 : x
  2. Step 2: Convert to fraction form
    243,376.94/365,100.02 = 74,911.31/x
  3. Step 3: Cross multiply
    243,376.94x = 365,100.02 × 74,911.31
  4. Step 4: Simplify right side
    243,376.94x = 27,350,118,579.17
  5. Step 5: Solve for x
    x = 27,350,118,579.17/243,376.94
  6. Step 6: Final answer
    x = 112,377.61

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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.