Home / 358,436.20-494,638.04-197,287.78

Finding the Fourth Proportional to 358,436.20, 494,638.04 and 197,287.78

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Solution

The fourth proportional to 358,436.20, 494,638.04 and 197,287.78 is: 272,254.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,436.20 : 494,638.04 = 197,287.78 : x
  2. Step 2: Convert to fraction form
    358,436.20/494,638.04 = 197,287.78/x
  3. Step 3: Cross multiply
    358,436.20x = 494,638.04 × 197,287.78
  4. Step 4: Simplify right side
    358,436.20x = 97,586,040,815.15
  5. Step 5: Solve for x
    x = 97,586,040,815.15/358,436.20
  6. Step 6: Final answer
    x = 272,254.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.