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Finding the Fourth Proportional to 329,931, 455,304.78 and 179,028

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Solution

The fourth proportional to 329,931, 455,304.78 and 179,028 is: 247,058.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,931 : 455,304.78 = 179,028 : x
  2. Step 2: Convert to fraction form
    329,931/455,304.78 = 179,028/x
  3. Step 3: Cross multiply
    329,931x = 455,304.78 × 179,028
  4. Step 4: Simplify right side
    329,931x = 81,512,304,153.84
  5. Step 5: Solve for x
    x = 81,512,304,153.84/329,931
  6. Step 6: Final answer
    x = 247,058.64

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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.