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Finding the Fourth Proportional to 329,799.91, 455,123.08 and 178,896.91

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Solution

The fourth proportional to 329,799.91, 455,123.08 and 178,896.91 is: 246,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,799.91 : 455,123.08 = 178,896.91 : x
  2. Step 2: Convert to fraction form
    329,799.91/455,123.08 = 178,896.91/x
  3. Step 3: Cross multiply
    329,799.91x = 455,123.08 × 178,896.91
  4. Step 4: Simplify right side
    329,799.91x = 81,420,112,681.68
  5. Step 5: Solve for x
    x = 81,420,112,681.68/329,799.91
  6. Step 6: Final answer
    x = 246,877.30

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1.5x scale

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.