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Finding the Fourth Proportional to 329,743.80, 494,615.70 and 163,510.20

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Solution

The fourth proportional to 329,743.80, 494,615.70 and 163,510.20 is: 245,265.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,743.80 : 494,615.70 = 163,510.20 : x
  2. Step 2: Convert to fraction form
    329,743.80/494,615.70 = 163,510.20/x
  3. Step 3: Cross multiply
    329,743.80x = 494,615.70 × 163,510.20
  4. Step 4: Simplify right side
    329,743.80x = 80,874,712,030.14
  5. Step 5: Solve for x
    x = 80,874,712,030.14/329,743.80
  6. Step 6: Final answer
    x = 245,265.30

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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.