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Finding the Fourth Proportional to 329,948.28, 455,329.80 and 179,045.28

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Solution

The fourth proportional to 329,948.28, 455,329.80 and 179,045.28 is: 247,083.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,948.28 : 455,329.80 = 179,045.28 : x
  2. Step 2: Convert to fraction form
    329,948.28/455,329.80 = 179,045.28/x
  3. Step 3: Cross multiply
    329,948.28x = 455,329.80 × 179,045.28
  4. Step 4: Simplify right side
    329,948.28x = 81,524,651,533.34
  5. Step 5: Solve for x
    x = 81,524,651,533.34/329,948.28
  6. Step 6: Final answer
    x = 247,083.12

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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.