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Finding the Fourth Proportional to 330,478.40, 456,063.08 and 179,575.40

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Solution

The fourth proportional to 330,478.40, 456,063.08 and 179,575.40 is: 247,815.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,478.40 : 456,063.08 = 179,575.40 : x
  2. Step 2: Convert to fraction form
    330,478.40/456,063.08 = 179,575.40/x
  3. Step 3: Cross multiply
    330,478.40x = 456,063.08 × 179,575.40
  4. Step 4: Simplify right side
    330,478.40x = 81,897,706,838.04
  5. Step 5: Solve for x
    x = 81,897,706,838.04/330,478.40
  6. Step 6: Final answer
    x = 247,815.62

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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.