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Finding the Fourth Proportional to 185,121.17, 277,494.81 and 72,880.17

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Solution

The fourth proportional to 185,121.17, 277,494.81 and 72,880.17 is: 109,246.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,121.17 : 277,494.81 = 72,880.17 : x
  2. Step 2: Convert to fraction form
    185,121.17/277,494.81 = 72,880.17/x
  3. Step 3: Cross multiply
    185,121.17x = 277,494.81 × 72,880.17
  4. Step 4: Simplify right side
    185,121.17x = 20,223,868,926.92
  5. Step 5: Solve for x
    x = 20,223,868,926.92/185,121.17
  6. Step 6: Final answer
    x = 109,246.66

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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.