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Finding the Fourth Proportional to 329,420.20, 494,130.30 and 163,532.20

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Solution

The fourth proportional to 329,420.20, 494,130.30 and 163,532.20 is: 245,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,420.20 : 494,130.30 = 163,532.20 : x
  2. Step 2: Convert to fraction form
    329,420.20/494,130.30 = 163,532.20/x
  3. Step 3: Cross multiply
    329,420.20x = 494,130.30 × 163,532.20
  4. Step 4: Simplify right side
    329,420.20x = 80,806,215,045.66
  5. Step 5: Solve for x
    x = 80,806,215,045.66/329,420.20
  6. Step 6: Final answer
    x = 245,298.30

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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.