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Finding the Fourth Proportional to 329,868.40, 494,802.60 and 172,404.40

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Solution

The fourth proportional to 329,868.40, 494,802.60 and 172,404.40 is: 258,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,868.40 : 494,802.60 = 172,404.40 : x
  2. Step 2: Convert to fraction form
    329,868.40/494,802.60 = 172,404.40/x
  3. Step 3: Cross multiply
    329,868.40x = 494,802.60 × 172,404.40
  4. Step 4: Simplify right side
    329,868.40x = 85,306,145,371.44
  5. Step 5: Solve for x
    x = 85,306,145,371.44/329,868.40
  6. Step 6: Final answer
    x = 258,606.60

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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.