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Finding the Fourth Proportional to 323,088.10, 445,903.36 and 185,320.78

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Solution

The fourth proportional to 323,088.10, 445,903.36 and 185,320.78 is: 255,766.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,088.10 : 445,903.36 = 185,320.78 : x
  2. Step 2: Convert to fraction form
    323,088.10/445,903.36 = 185,320.78/x
  3. Step 3: Cross multiply
    323,088.10x = 445,903.36 × 185,320.78
  4. Step 4: Simplify right side
    323,088.10x = 82,635,158,479.82
  5. Step 5: Solve for x
    x = 82,635,158,479.82/323,088.10
  6. Step 6: Final answer
    x = 255,766.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.