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Finding the Fourth Proportional to 330,334.81, 495,576.05 and 105,708.74

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Solution

The fourth proportional to 330,334.81, 495,576.05 and 105,708.74 is: 158,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,334.81 : 495,576.05 = 105,708.74 : x
  2. Step 2: Convert to fraction form
    330,334.81/495,576.05 = 105,708.74/x
  3. Step 3: Cross multiply
    330,334.81x = 495,576.05 × 105,708.74
  4. Step 4: Simplify right side
    330,334.81x = 52,386,716,813.25
  5. Step 5: Solve for x
    x = 52,386,716,813.25/330,334.81
  6. Step 6: Final answer
    x = 158,586.73

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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.