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Finding the Fourth Proportional to 323,727.40, 485,731.20 and 173,792.76

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Solution

The fourth proportional to 323,727.40, 485,731.20 and 173,792.76 is: 260,764.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,727.40 : 485,731.20 = 173,792.76 : x
  2. Step 2: Convert to fraction form
    323,727.40/485,731.20 = 173,792.76/x
  3. Step 3: Cross multiply
    323,727.40x = 485,731.20 × 173,792.76
  4. Step 4: Simplify right side
    323,727.40x = 84,416,565,866.11
  5. Step 5: Solve for x
    x = 84,416,565,866.11/323,727.40
  6. Step 6: Final answer
    x = 260,764.35

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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.