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Finding the Fourth Proportional to 329,573.40, 494,360.10 and 129,900.30

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Solution

The fourth proportional to 329,573.40, 494,360.10 and 129,900.30 is: 194,850.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,573.40 : 494,360.10 = 129,900.30 : x
  2. Step 2: Convert to fraction form
    329,573.40/494,360.10 = 129,900.30/x
  3. Step 3: Cross multiply
    329,573.40x = 494,360.10 × 129,900.30
  4. Step 4: Simplify right side
    329,573.40x = 64,217,525,298.03
  5. Step 5: Solve for x
    x = 64,217,525,298.03/329,573.40
  6. Step 6: Final answer
    x = 194,850.45

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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.