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Finding the Fourth Proportional to 445,953.27, 615,415.94 and 254,970.66

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Solution

The fourth proportional to 445,953.27, 615,415.94 and 254,970.66 is: 351,859.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,953.27 : 615,415.94 = 254,970.66 : x
  2. Step 2: Convert to fraction form
    445,953.27/615,415.94 = 254,970.66/x
  3. Step 3: Cross multiply
    445,953.27x = 615,415.94 × 254,970.66
  4. Step 4: Simplify right side
    445,953.27x = 156,913,008,660.01
  5. Step 5: Solve for x
    x = 156,913,008,660.01/445,953.27
  6. Step 6: Final answer
    x = 351,859.75

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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.