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Finding the Fourth Proportional to 358,315.82, 494,474.84 and 197,181.30

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Solution

The fourth proportional to 358,315.82, 494,474.84 and 197,181.30 is: 272,109.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,315.82 : 494,474.84 = 197,181.30 : x
  2. Step 2: Convert to fraction form
    358,315.82/494,474.84 = 197,181.30/x
  3. Step 3: Cross multiply
    358,315.82x = 494,474.84 × 197,181.30
  4. Step 4: Simplify right side
    358,315.82x = 97,501,191,768.49
  5. Step 5: Solve for x
    x = 97,501,191,768.49/358,315.82
  6. Step 6: Final answer
    x = 272,109.65

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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.