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Finding the Fourth Proportional to 307,364.94, 460,936.50 and 129,885.66

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Solution

The fourth proportional to 307,364.94, 460,936.50 and 129,885.66 is: 194,781.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,364.94 : 460,936.50 = 129,885.66 : x
  2. Step 2: Convert to fraction form
    307,364.94/460,936.50 = 129,885.66/x
  3. Step 3: Cross multiply
    307,364.94x = 460,936.50 × 129,885.66
  4. Step 4: Simplify right side
    307,364.94x = 59,869,041,520.59
  5. Step 5: Solve for x
    x = 59,869,041,520.59/307,364.94
  6. Step 6: Final answer
    x = 194,781.62

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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.