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Finding the Fourth Proportional to 329,842.20, 494,763.30 and 163,954.20

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Solution

The fourth proportional to 329,842.20, 494,763.30 and 163,954.20 is: 245,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,842.20 : 494,763.30 = 163,954.20 : x
  2. Step 2: Convert to fraction form
    329,842.20/494,763.30 = 163,954.20/x
  3. Step 3: Cross multiply
    329,842.20x = 494,763.30 × 163,954.20
  4. Step 4: Simplify right side
    329,842.20x = 81,118,521,040.86
  5. Step 5: Solve for x
    x = 81,118,521,040.86/329,842.20
  6. Step 6: Final answer
    x = 245,931.30

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Similar ratio
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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.