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Finding the Fourth Proportional to 201,401.50, 277,941.39 and 115,377.11

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Solution

The fourth proportional to 201,401.50, 277,941.39 and 115,377.11 is: 159,224.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,401.50 : 277,941.39 = 115,377.11 : x
  2. Step 2: Convert to fraction form
    201,401.50/277,941.39 = 115,377.11/x
  3. Step 3: Cross multiply
    201,401.50x = 277,941.39 × 115,377.11
  4. Step 4: Simplify right side
    201,401.50x = 32,068,073,709.74
  5. Step 5: Solve for x
    x = 32,068,073,709.74/201,401.50
  6. Step 6: Final answer
    x = 159,224.60

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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.