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Finding the Fourth Proportional to 330,486, 495,727.79 and 93,828.71

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Solution

The fourth proportional to 330,486, 495,727.79 and 93,828.71 is: 140,742.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,486 : 495,727.79 = 93,828.71 : x
  2. Step 2: Convert to fraction form
    330,486/495,727.79 = 93,828.71/x
  3. Step 3: Cross multiply
    330,486x = 495,727.79 × 93,828.71
  4. Step 4: Simplify right side
    330,486x = 46,513,496,099.07
  5. Step 5: Solve for x
    x = 46,513,496,099.07/330,486
  6. Step 6: Final answer
    x = 140,742.71

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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.