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Finding the Fourth Proportional to 329,063.20, 493,479.60 and 171,239.20

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Solution

The fourth proportional to 329,063.20, 493,479.60 and 171,239.20 is: 256,798.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,063.20 : 493,479.60 = 171,239.20 : x
  2. Step 2: Convert to fraction form
    329,063.20/493,479.60 = 171,239.20/x
  3. Step 3: Cross multiply
    329,063.20x = 493,479.60 × 171,239.20
  4. Step 4: Simplify right side
    329,063.20x = 84,503,051,920.32
  5. Step 5: Solve for x
    x = 84,503,051,920.32/329,063.20
  6. Step 6: Final answer
    x = 256,798.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.